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The '''Pattern of the Year''' competition is held each year on the ConwayLife.com forums. Users are invited to submit interesting and noteworthy patterns, their own or others'; following discussion, a final list is then curated, and a public vote held. There are only two hard and fast rules: patterns must have been discovered in the year in question; and patterns must work in B3/S23 ([[Conway's Game of Life]]). | The '''Pattern of the Year''' competition is held each year on the ConwayLife.com forums. Users are invited to submit interesting and noteworthy patterns, their own or others'; following discussion, a final list is then curated, and a public vote held. There are only two hard and fast rules: patterns must have been discovered in the year in question; and patterns must work in B3/S23 ([[Conway's Game of Life]]). | ||
− | ==2017== | + | ==Summary== |
− | The following patterns were voted on for the | + | |
+ | {| class="wikitable" | ||
+ | |- | ||
+ | ! Year | ||
+ | ! First place | ||
+ | ! Second place | ||
+ | ! Third place | ||
+ | |- | ||
+ | | 2018 || [[Sir Robin]] || [[0E0P metacell]] || [[Reverse caber-tosser]] | ||
+ | |- | ||
+ | | 2017 || [[2-engine Cordership]] || [[Tanner's p46]] || [[Stable pulse-divider]]s | ||
+ | |- | ||
+ | | 2016 || [[Caterloopillar]]s || [[Copperhead]] || [[Grandfather problem|Grandfather-less Pattern]] | ||
+ | |- | ||
+ | | 2015 || [[Syringe]] || [[Simkin glider gun]] || [[Demonoid]]s | ||
+ | |- | ||
+ | | 2014 || [[Waterbear]] || [[Centipede]] || [[Half-baked knightship]] | ||
+ | |- | ||
+ | | 2013 || [[Snark]] || [[Loafer]] || [[CC semi-Snark]] and [[Linear propagator]]† | ||
+ | |- | ||
+ | | 2011 || [[Fully universal Turing machine]] and [[Lobster]]† || || [[Garden of Eden 6]] | ||
+ | |- | ||
+ | | 2010 || [[Gemini]] || [[Phi calculator]] || [[c/5 diagonal rake]] | ||
+ | |- | ||
+ | | 2004 || [[Caterpillar]]‡ || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ‡ Result of informal consensus rather than formal competition; | ||
+ | |||
+ | † Patterns were tied on number of votes. | ||
+ | |||
+ | ==Results by year== | ||
+ | |||
+ | |||
+ | ===2018=== | ||
+ | The following patterns were voted on for the 2018 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. [[77topaz]] organized the competition. | ||
{| class="sortable wikitable" | {| class="sortable wikitable" | ||
Line 13: | Line 49: | ||
! class="unsortable" colspan="4" | Description | ! class="unsortable" colspan="4" | Description | ||
|- | |- | ||
− | | || || | + | | 1 || 106 || [[Sir Robin]] || [[Adam P. Goucher]], [[Tomas Rokicki]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[(2,1)c/6]] spaceship, and the first [[elementary spaceship|elementary]] [[oblique]] spaceship discovered in Conway's Game of Life. | ||
+ | |- | ||
+ | | 2 || 90 || [[0E0P metacell]] || [[Adam P. Goucher]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[unit cell]] which does not require a background grid of metacells to function, proving the existence of unusual classes of patterns such as quadratic [[replicator]]s and [[RRO]]s in Conway's Game of Life "imported" from other rules. | ||
+ | |- | ||
+ | | 3 || 79 || [[Reverse caber-tosser]] || [[Adam P. Goucher]], [[Dave Greene]], [[Chris Cain]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | A complex mechanism which theoretically allows any [[glider synthesis|glider-synthesisable]] pattern to be synthesised in just 35 gliders, by encoding the pattern's complexity into the distance between the gliders rather than their quantity. |
+ | |- | ||
+ | | 4 || 52 || [[Turing Machine simulator]] || [[Michael Simkin]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A script which can simulate arbitrary [https://en.wikipedia.org/wiki/Turing_machine Turing machines] in Conway's Game of Life using a finite tape. | ||
+ | |- | ||
+ | | 5 || 45 || [[Camelship]] || [[Chris Cain]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[self-constructing]] [[oblique]] spaceship with the minimum possible step size for a [[slope]] 3 spaceship. | ||
+ | |- | ||
+ | | data-sort-value="6" | =6 || 41 || New [[self-constructing]] spaceships || [[Dave Greene]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[loopship]], along with [[HashLife]]-friendly variants of [[Orthogonoid]] and [[Demonoid]]. | ||
+ | |- | ||
+ | | data-sort-value="6" | =6 || 41 || [[c/2 diagonal]] [[telegraph]] recipe || [[Martin Grant]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A 140-glider recipe to create a detectable [[c/2 diagonal]] signal traveling non-destructively along an arbitrarily long [[barge]] or [[ship]]. | ||
+ | |- | ||
+ | | 8 || 35 || [[Period-52 glider gun]] || [[Dave Greene]], [[Matthias Merzenich]], [[Adam P. Goucher]], [[Chris Cain]], [[Entity Valkyrie]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first true-period 52 [[gun]] constructed, which was later [[P13-assisted period-52 glider gun|vastly reduced]] using [[53P13]]. | ||
+ | |- | ||
+ | | 9 || 34 || Stable [[line crosser]] || [[Dave Greene]], [[Goldtiger997]], [[Chris Cain]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A modernized rehash of a [[periodic]] circuit for transmitting a glider across a diagonal line of cells found by [[David Bell]]. | ||
+ | |- | ||
+ | | data-sort-value="10" | =10 || 33 || [[Jormungant's G-to-H]] || [[Louis-François Handfield]] (Jormungant) | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A 2G-to-H converter with a short [[recovery time]], allowing for the optimization of numerous [[gun]]s. | ||
+ | |- | ||
+ | | data-sort-value="10" | =10 || 33 || [[Period-33 glider gun]] || [[Arie Paap]], [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first true-period 33 [[gun]], which uses two interacting copies of [[Jason's p33]]. | ||
+ | |- | ||
+ | | data-sort-value="10" | =10 || 33 || [[Infinite distinct diagonal spaceships]] and [[infinite distinct orthogonal spaceships]] || [[Adam P. Goucher]], [[Goldtiger997]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | Two guns which each use [[sqrtgun]] mechanisms to fire infinitely many distinct spaceships, all of which are [[puffer]]s whose outputs are eaten by spaceships arbitrarily far away. | ||
+ | |- | ||
+ | | data-sort-value="13" | =13 || 31 || [[Sierpinski triangle generator]] || [[Luka Okanishi]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[breeder]] that outputs gliders in the shape of a growing Sierpinski triangle. | ||
+ | |- | ||
+ | | data-sort-value="13" | =13 || 31 || [[Cottonmouth]] || [[AforAmpere]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | An infinitely extensible [[pushalong]] for the [[copperhead]] and [[fireship]]. | ||
+ | |- | ||
+ | | data-sort-value="13" | =13 || 31 || [[5c/9 signal injector]] || [[Rhombic]], [[Simon Ekström]], [[Chris Cain]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A method of transforming [[Herschel]]s to [[5c/9 drifter]]s with a [[recovery time]] of 62. | ||
+ | |- | ||
+ | | 16 || 30 || [[p46 gliderless LWSS gun]] || [[Nathaniel Johnston]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The smallest known [[gliderless]] [[LWSS]] gun, using three copies of [[Tanner's p46]]. | ||
+ | |- | ||
+ | | data-sort-value="17" | =17 || 29 || [[Bronco]] || [[Tanner Jacobi]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The second elementary [[glider]]-to-[[Herschel]] converter to be discovered. | ||
+ | |- | ||
+ | | data-sort-value="17" | =17 || 29 || New high-period [[oscillator]]s || [[carybe]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A collective entry for [[p36 shuttle]], [[34P14 shuttle]], [[68P16]], and [[p64 thunderbird hassler]], all discovered using [[apgsearch]]. | ||
+ | |- | ||
+ | | 19 || 28 || [[Quinti-Snark]]s || [[Tanner Jacobi]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | Period-quintupling [[reflector]]s useful for [[gun]]s. | ||
+ | |- | ||
+ | | 20 || 27 || [[Pseudo-period]] [[xWSS]] guns || [[Chris Cain]], [[Adam P. Goucher]], [[Entity Valkyrie]], [[2718281828]], [[Goldtiger997]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | New xWSS guns with pseudo-periods ranging from 18 to 21, breaking the previous record of 22. | ||
+ | |- | ||
+ | | 21 || 26 || [[Self-constructing]] [[oscillator]] with [[strict volatility]] one || [[Dave Greene]], [[Goldtiger997]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A method of constructing strictly volatile oscillators with any [[period]] 3,506,910 or above. | ||
+ | |- | ||
+ | | 22 || 25 || [[p3 bumper]] || [[Arie Paap]], [[Tanner Jacobi]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[periodic]] reflector to work at p39, which also allowed for the construction of a [[p57 bumper loop]] | ||
+ | |- | ||
+ | | data-sort-value="23" | =23 || 24 || Goldtiger997's Amazing 2 in 1 Reusable Multipurpose Minstrel Remover and Detector™ || [[Goldtiger997]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A circuit capable of removing every known [[Minstrel]] from [[Sir Robin]] at the time of its construction. | ||
|- | |- | ||
− | | || || | + | | data-sort-value="23" | =23 || 24 || New mid-period [[sparker]]s || [[Dongook Lee]], [[Josh Ball]], [[Martin Grant]], [[Aidan F. Pierce]], [[carybe]], [[Bullet51]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | [[ | + | | colspan="4" | A collective entry for various [[spark]]ing oscillators with periods ranging from 7 to 10, including but not limited to [[68P9]] and [[55P10]]. |
|- | |- | ||
− | | || || | + | | data-sort-value="25" | =25 || 23 || [[Minstrel 4]] || [[Entity Valkyrie]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | A manually-assembled [[Sir Robin]] [[tagalong]] which combines [[Minstrel]]s 1 and 3. |
|- | |- | ||
− | | || || [[ | + | | data-sort-value="25" | =25 || 23 || Period-doubling [[fireship]] tagalong || [[christoph.r]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | A | + | | colspan="4" | A [[tagalong]] for a [[flotilla]] of three [[fireship]]s which increases its period to 20. |
|- | |- | ||
− | | || || [[ | + | | 27 || 22 || [[p4 bouncer]] || [[Arie Paap]], [[Noam Elkies]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | The fastest known p4 [[reflector]]. |
+ | |- | ||
+ | | 28 || 21 || Huge 2D-extensible wick-supporting pushalong || [[Hartmut Holzwart]] | ||
+ | |- | ||
+ | | 29 || 20 || [[Non-monotonic]] [[2c/5 orthogonal]] spaceship || [[Arie Paap]], [[Matthias Merzenich]], [[Bullet51]] | ||
|- | |- | ||
− | | || || | + | | data-sort-value="30" | =30 || 19 || [[p9 bouncer]] || [[Matthias Merzenich]], [[carybe]], [[Noam Elkies]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | A | + | | colspan="4" | A [[reflector]] capable of reflecting a p27 glider stream using [[68P9]], which was found using [[apgsearch]] the same day. |
|- | |- | ||
− | | || || [[ | + | | data-sort-value="30" | =30 || 19 || p6 180-degree [[reflector]] and related [[gun]]s || [[Arie Paap]], [[Tanner Jacobi]], [[Louis-François Handfield]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | A [[ | + | | colspan="4" | A reflector which can be used alongside other [[sparker]]s to create arbitrary guns with period (60n+30). |
+ | |- | ||
+ | | 32 || 18 || Fast universal [[regulator]]s || [[Dave Greene]] | ||
|- | |- | ||
− | | || || | + | | 33 || 17 || [[42883M]] || [[Adam P. Goucher]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | [[ | + | | colspan="4" | A 16×16 [[soup]] found by [[apgsearch]], and the longest-lasting known [[methuselah]] fitting within a 16×16 bounding box. |
|- | |- | ||
− | | || || [[ | + | | 34 || 10 || New [[honey farm]] [[hassle]]rs || [[Tanner Jacobi]], [[Matthias Merzenich]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | A collective entry for a few [[oscillator]]s of periods 36 and 40 which use honey farm-hassling reactions. |
+ | |} | ||
+ | |||
+ | ===2017=== | ||
+ | The following patterns were voted on for the 2017 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. [[Adam P. Goucher]] organized the competition. | ||
+ | |||
+ | {| class="sortable wikitable" | ||
+ | |- | ||
+ | ! data-sort-type="number" | Final rank | ||
+ | ! data-sort-type="number" | Stars | ||
+ | ! Pattern | ||
+ | ! Author | ||
+ | |- | ||
+ | ! class="unsortable" colspan="4" | Description | ||
|- | |- | ||
− | | || || [[ | + | | 1 || 50 || [[2-engine Cordership]] || [[Aidan F. Pierce]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | A successful refutation of the common belief that 3 engines are required to build a [[Cordership]]. |
|- | |- | ||
− | | || || | + | | 2 || 34 || [[Tanner's p46]] || [[Tanner Jacobi]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | A new sparky [[:Category:Oscillators with period 46|period-46]] [[oscillator]] that various [[gun]]s can be made from. | ||
|- | |- | ||
− | | || | + | | 3 || 32 || [[Stable pulse-divider]]s || [[Tanner Jacobi]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | The [[Snark]] and [[semi-Snark]] have been joined by new exciting [[tremi-Snark]], [[quadri-Snark]], and [[semi-cenark]]s, which are particularly helpful for optimising [[glider gun|glider]] and spaceship [[gun]]s. |
|- | |- | ||
− | | || || | + | | 4 || 29 || New [[Demonoid]] and [[Orthogonoid]] [[spaceship]]s || [[Dave Greene]], [[slmake]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | [[Geminoid]] variants which travel diagonally and orthogonally, respectively, showcasing interesting developments such as [[MWSS]]-based [[signal]]ling and [[syringe]] syntheses. |
|- | |- | ||
− | | || || The efficient [[:Category:Strict still lifes with 16 cells|16-bit still life]] [[glider synthesis|synthesis]] project || | + | | 5 || 27 || The efficient [[:Category:Strict still lifes with 16 cells|16-bit still life]] [[glider synthesis|synthesis]] project || |
|- class="expand-child" | |- class="expand-child" | ||
| colspan="4" | All still-lifes of 16 or fewer cells can be constructed at a cost of <= 1 glider per cell. | | colspan="4" | All still-lifes of 16 or fewer cells can be constructed at a cost of <= 1 glider per cell. | ||
|- | |- | ||
− | | || || [[ | + | | 6 || 26 || Synthesis of [[25P3H1V0.2]], and reductions of many other small spaceships || [[Martin Grant]], [[Chris Cain]], [[2718281828]], [[gmc_nxtman]], et al. |
+ | |- | ||
+ | | data-sort-value="7" | =7 || 24 || [[Sparse Cordership]] || [[David Bell]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | All previously-known [[Cordership]]s required interactions between two or more adjacent [[switch-engine]]s. This design, on the other hand, allows the individual switch-engines to be separated by arbitrary distances, relying instead on long-range interactions mediated by [[glider]]s and [[stable]] objects. |
+ | |- | ||
+ | | data-sort-value="7" | =7 || 24 || [[Hydra]] || [[Oscar Cunningham]], [[Dave Greene]], [[slmake]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[single-channel]] [[quadratic-growth]] pattern which constructs an intricate mesh of splitting construction heads in all directions. Some well-positioned [[eater]]s prevent this behemoth from cannibalising itself. It uses similar technology to Dave's earlier [[triple wickstretcher]], but is more complex owing to the necessity of splitting signals. | ||
|- | |- | ||
− | | || || | + | | 9 || 22 || [[3-glider collision|Three-glider synthesis]] of a [[switch engine]] || [[Luka Okanishi]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | It was previously believed that 4 gliders were necessary and sufficient to synthesise a switch-engine. |
|- | |- | ||
− | | || || [[ | + | | 10 || 21 || Synthesis of ''N''-bit still lifes in 38 to 39 gliders || [[Tanner Jacobi]], [[Adam P. Goucher]], [[Chris Cain]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | [[Glider synthesis|Syntheses]] of ''N''-bit still lifes for all sufficiently large natural numbers ''N'', using a bounded number of [[glider]]s (38 or 39, depending on the parity of ''N''). |
|- | |- | ||
− | | || || [[ | + | | 11 || 18 || Life object having a bounded population with an [[unknown fate]] || [[David Bell]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | A | + | | colspan="4" | A pattern which either becomes [[stable]], [[oscillator]]y, or [[aperiodic]], depending on the behaviour of 7 under the generalised Collatz iteration which maps a positive integer ''N'' to 5''N''+1 (if ''N'' odd) or ''N''/2 (if ''N'' even). |
|- | |- | ||
− | | || || Completed [[Quest for Tetris]] challenge || [[PhiNotPi]], [[El'endia Starman]], [[K Zhang]], [[Muddyfish]], [[Kritixi Lithos]], [[Mego]], [[Quartata]], et al. | + | | data-sort-value="12" | =12 || 17 || Completed [[Quest for Tetris]] challenge || [[PhiNotPi]], [[El'endia Starman]], [[K Zhang]], [[Muddyfish]], [[Kritixi Lithos]], [[Mego]], [[Quartata]], et al. |
|- class="expand-child" | |- class="expand-child" | ||
| colspan="4" | A game of Tetris simulated on a digital [[computer]] built out of [[logic gate]]s formed from [[Brice Due]]'s [[metacell]]s. | | colspan="4" | A game of Tetris simulated on a digital [[computer]] built out of [[logic gate]]s formed from [[Brice Due]]'s [[metacell]]s. | ||
|- | |- | ||
− | | || || | + | | data-sort-value="12" | =12 || 17 || [[Gliderless]] [[unit cell]] || [[Peter Naszvadi]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | A cellular automata [[polyglot]] (pattern which runs in a range of rules) based on [[p46 technology]], establishing [[Turing-completeness]] of B3[8]/S23[8] provided [[infinite]] patterns are permitted. | ||
+ | |- | ||
+ | | data-sort-value="12" | =12 || 17 || Record setting [[Garden of Eden]] || [[Steven Eker]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | An [[orphan]] with 45 live cells and 43 dead cells, the fewest total number of specified cells among all known orphans. | ||
+ | |- | ||
+ | | 15 || 16 || Several new [[stable signal converter]]s || [[Dave Greene]], [[Goldtiger997]] | ||
+ | |- | ||
+ | | 16 || 15 || The second elementary c/7 orthogonal spaceship || [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The narrowest odd-symmetric c/7 spaceship. | ||
+ | |- | ||
+ | | 17 || 14 || Much smaller [[spiral growth]] pattern || [[Dave Greene]], [[slmake]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | [[ | + | | colspan="4" | A tightly-coiled loop of data reflected in a double-spiral of [[Snark]]s instructs a [[construction arm]] to encircle the construction indefinitely, gradually constructing an unbounded spiral of further Snarks. |
|- | |- | ||
− | | || || [[p148 B29 gun]] || [[Luka Okanishi]], [[Dave Greene]], [[Adam P. Goucher]] | + | | 18 || 13 || [[p148 B29 gun]] || [[Luka Okanishi]], [[Dave Greene]], [[Adam P. Goucher]] |
|- class="expand-child" | |- class="expand-child" | ||
| colspan="4" | A compact [[gun]] for a [[B29|c/4 diagonal spaceship]]. | | colspan="4" | A compact [[gun]] for a [[B29|c/4 diagonal spaceship]]. | ||
|- | |- | ||
− | | || || | + | | data-sort-value="19" | =19 || 12 || Cumulative [[sum generator]] || [[gameoflifeboy]] |
+ | |- | ||
+ | | data-sort-value="19" | =19 || 12 || [[Triple wickstretcher]] || [[Dave Greene]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[single-channel]] [[glider loop]] which extends [[zigzag]]s of [[Snark]]s. | ||
+ | |- | ||
+ | | data-sort-value="19" | =19 || 12 || The first 3c/7 orthogonal puffer || [[Luka Okanishi]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | Exclusively using 3c/7 [[spaghetti monster]]s (the only known spaceship of its velocity). Owing to its faster-than-c/4 speed, a c/2 spaceship is necessary to catch up with the front of the engine to continue the reaction. | ||
+ | |- | ||
+ | | 22 || 11 || The first c/6 orthogonal puffers || [[Nico Brown]], [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | Messy albeit elegant [[puffer]]s where [[glider]]s collide with large sparky spaceships in perpetuity. | ||
|- | |- | ||
− | | || || | + | | 23 || 9 || Fixed-length [[tail]] for a [[lightspeed bubble]] of arbitrary width in the [[zebra stripes]] [[agar]] || [[Arie Paap]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | [[Gabriel Nivasch]] showed that arbitrary-width lightspeed bubbles in the zebra stripes agar are supportable, requiring a fixed-length head and variable-length tail. It was hitherto an open problem to replace the variable-length tail with a fixed-length counterpart. | ||
|- | |- | ||
− | | || || | + | | 24 || 7 || [[28P7.3]] || [[Bullet51]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | | + | | colspan="4" | The smallest known (tied with previous record) [[:Category:Oscillators with period 7|period-7]] [[oscillator]]. |
|- | |- | ||
− | | || || [[ | + | | 25 || 6 || [[Runny nose]] || [[83bismuth38]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | A [[ | + | | colspan="4" | A [[:Category:Oscillators with period 3|period-3]] [[oscillator]] which showed an unexpected gap in lists of small objects. |
|} | |} | ||
− | ==2016== | + | ===2016=== |
The following patterns were voted on for the 2016 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. [[Alexey Nigin]] organized the competition. | The following patterns were voted on for the 2016 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. [[Alexey Nigin]] organized the competition. | ||
Line 122: | Line 301: | ||
| 1 || 49 || [[Caterloopillar]]s || [[Michael Simkin]], [[David Bell]] et al. | | 1 || 49 || [[Caterloopillar]]s || [[Michael Simkin]], [[David Bell]] et al. | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | Previously, all [[engineered spaceship]]s had speeds that were either fixed ([[Caterpillar]]) or adjustable but always very low ([[Gemini]]). Caterloopillars have the best of both worlds: their speed is variable, and the fastest ones can travel as quickly as c/4. So far all caterloopillars have been orthogonal, but a project to build one with adjustable slope is underway. | + | | colspan="4" | Previously, all [[engineered spaceship]]s had speeds that were either fixed ([[Caterpillar]]) or adjustable but always very low ([[Gemini]]). Caterloopillars have the best of both worlds: their speed is variable, and the fastest ones can travel as quickly as c/4. So far all caterloopillars have been orthogonal, but a project to build one with adjustable [[slope]] is underway. |
|- | |- | ||
| 2 || 47 || [[Copperhead]] || [[zdr]], [[Simon Ekström]] et al. | | 2 || 47 || [[Copperhead]] || [[zdr]], [[Simon Ekström]] et al. | ||
Line 146: | Line 325: | ||
| 7 || 14 || [[Bumper]] || [[Tanner Jacobi]] | | 7 || 14 || [[Bumper]] || [[Tanner Jacobi]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | This [[reflector]] mechanism can be attached to a variety of sparky [[oscillator]]s to make reflectors of the corresponding periods. Since the resulting reflectors have different timing than the [[ | + | | colspan="4" | This [[reflector]] mechanism can be attached to a variety of sparky [[oscillator]]s to make reflectors of the corresponding periods. Since the resulting reflectors have different timing than the [[Snark]], they solve a range of "my glider is in the wrong phase" wiring problems. A small wave of record-breaking guns followed soon after the bumper's debut. |
|- | |- | ||
| data-sort-value="8" | =8 || 12 || New gun periods || [[Luka Okanishi]], [[thunk]], [[Matthias Merzenich]], [[Chris Cain]] | | data-sort-value="8" | =8 || 12 || New gun periods || [[Luka Okanishi]], [[thunk]], [[Matthias Merzenich]], [[Chris Cain]] | ||
Line 154: | Line 333: | ||
| data-sort-value="8" | =8 || 12 || [[Statorless p5]] || [[Josh Ball]] | | data-sort-value="8" | =8 || 12 || [[Statorless p5]] || [[Josh Ball]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | This is the first [[ | + | | colspan="4" | This is the first [[statorless]] oscillator of its period. Since the period is prime, the lack of stator implies that the oscillator is [[strictly volatile]], which is a rare property. |
|- | |- | ||
| 10 || 11 || [[Aperiodic tiles]] || [[NotLiving]] | | 10 || 11 || [[Aperiodic tiles]] || [[NotLiving]] | ||
Line 168: | Line 347: | ||
| colspan="4" | A few record-breaking Gardens of Eden and [[orphans]] were found, including an orphan with only 89 defined cells. | | colspan="4" | A few record-breaking Gardens of Eden and [[orphans]] were found, including an orphan with only 89 defined cells. | ||
|- | |- | ||
− | | data-sort-value="13" | =13 || 6 || 15-bit [[still life]] [[syntheses]] || [[ | + | | data-sort-value="13" | =13 || 6 || 15-bit [[still life]] [[syntheses]] || [[Charlie Neder]], [[Goldtiger997]], [[Bob Shemyakin]], [[Mark Niemiec]], [[Martin Grant]], [[Chris Cain]], et al. |
|- class="expand-child" | |- class="expand-child" | ||
| colspan="4" | A project to find syntheses of all [[:Category:Strict still lifes with 15 cells|15-bit]] still lifes in under 15 gliders turned out to be a very prolific collaboration. Using [[Catagolue]] soups along with known and new [[converter]] mechanisms, several hundred new syntheses were created. The goal was achieved in just 41 days. | | colspan="4" | A project to find syntheses of all [[:Category:Strict still lifes with 15 cells|15-bit]] still lifes in under 15 gliders turned out to be a very prolific collaboration. Using [[Catagolue]] soups along with known and new [[converter]] mechanisms, several hundred new syntheses were created. The goal was achieved in just 41 days. | ||
Line 177: | Line 356: | ||
|} | |} | ||
− | ==2015== | + | ===2015=== |
The following patterns were voted on for the 2015 competition. Users chose as many pattern as they wanted and ranked them from best to worst; the votes were then tallied with a custom Delphi program.<ref name="2015program" /> Alexey Nigin organized the competition. | The following patterns were voted on for the 2015 competition. Users chose as many pattern as they wanted and ranked them from best to worst; the votes were then tallied with a custom Delphi program.<ref name="2015program" /> Alexey Nigin organized the competition. | ||
Line 258: | Line 437: | ||
|} | |} | ||
− | ==2014== | + | ===2014=== |
− | + | The following patterns were submitted as competition entries by users. Patterns were not voted on at the time, but a belated vote was held in early {{year|2018}}, featuring three further submissions in addition to the original nine. [[Kiran Linsuain]] organized the competition; [[77topaz]] organized the 2018 vote. | |
{| class="sortable wikitable" | {| class="sortable wikitable" | ||
|- | |- | ||
+ | ! data-sort-type="number" | Final rank | ||
+ | ! data-sort-type="number" | Stars | ||
! Pattern | ! Pattern | ||
! Author | ! Author | ||
|- | |- | ||
− | ! class="unsortable" colspan="2" | | + | ! class="unsortable" colspan="4" | Description |
+ | |- | ||
+ | | 1 || 30 || [[Waterbear]] || [[Brett Berger]] and [[Ivan Fomichev]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first fast oblique [[spaceship]], moving at speed (23,5)c/79. | ||
+ | |- | ||
+ | | 2 || 23 || [[Centipede]] || [[Chris Cain]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A large, engineered [[spaceship]] that moves at 31c/240, using a unique reaction. | ||
+ | |- | ||
+ | | 3 || 21 || [[Half-baked knightship]] || [[Adam P. Goucher]], [[Chris Cain]], [[Dave Greene]], and [[Ivan Fomichev]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | An oblique [[spaceship]] that moves with [[displacement]] (6,3), using the [[half-bakery reaction]]. | ||
|- | |- | ||
− | | [[ | + | | data-sort-value="4" | =4 || 17 || [[Switch engine ping-pong]] || [[Michael Simkin]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan=" | + | | colspan="4" | A 23-cell [[quadratic growth]] pattern, the smallest known. |
|- | |- | ||
− | | [[ | + | | data-sort-value="4" | =4 || 17 || Syntheses for all [[:Category:Strict still lifes with 17 cells|17]]- and [[:Category:Strict still lifes with 18 cells|18]]-bit [[still life]]s || [[Martin Grant]], [[Mark Niemiec]], and [[Matthias Merzenich]] |
|- | |- | ||
− | | | + | | data-sort-value="6" | =6 || 13 || [[Pufferfish]] || [[Richard Schank]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan=" | + | | colspan="4" | A [[period]] 12 c/2 [[puffer]] that was used to make the first wholly high-period c/2 spaceship. |
|- | |- | ||
− | | [[ | + | | data-sort-value="7" | =6 || 13 || [[Spiral growth]] [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=1260&p=12815#p12815] || [[Dave Greene]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan=" | + | | colspan="4" | A [[self-constructing pattern]] that grows in an outward spiral. |
|- | |- | ||
− | | [[ | + | | data-sort-value="8" | =8 || 12 || [[Dart]] and [[crab]] syntheses [http://www.conwaylife.com/forums/viewtopic.php?f=2&t=1395#p14680] || [[Martin Grant]], [[Mark Niemiec]], [[Michael Simkin]], [[Ivan Fomichev]], [[Tanner Jacobi]], and [[Brett Berger]] |
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan=" | + | | colspan="4" | [[Glider synthesis|Glider syntheses]] for small [[spaceship]]s that did not previously have any. |
|- | |- | ||
− | | | + | | data-sort-value="8" | =8 || 12 || [[Weekender distaff]] || [[Ivan Fomichev]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first 2c/7 orthogonal [[rake]], consisting of a long chain of [[weekender]]s perturbing [[ash|debris]]. | ||
|- | |- | ||
− | | [[ | + | | 10 || 8 || [[Honey thieves]]<sup>†</sup> || [[Matthias Merzenich]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | The smallest known [[:Category:Oscillators with period 17|period 17]] [[oscillator]], and the first one with a known [[glider synthesis]]. | ||
|- | |- | ||
− | | [[ | + | | 11 || 7 || [[p27 billiard table oscillator]]<sup>†</sup> || [[Matthias Merzenich]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | An [[oscillator]] in which period 5, period 8 and period 3 [[rotor]]s [[phase shift]] each other. | ||
|- | |- | ||
− | | [[ | + | | 12 || 6 || [[LCM oscillators]]<sup>†</sup> || [[Noam Elkies]] |
+ | |- class="expand-child" | ||
+ | | colspan="4" | [[Oscillator]]s featuring multiple [[rotor]]s that interact in complicated ways. | ||
|} | |} | ||
− | ==2013== | + | <sup>†</sup>not originally submitted in 2015. |
− | No competition was held | + | |
− | http://conwaylife.com/forums/viewtopic.php?p=7819#p7826|title=Re: Just the place for a Snark!|author=Emerson J. Perkins|date=April 26, 2013|accessdate=February 5, 2018}}</ref><ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?f=7&t=1997#p26363|title=Re: Pattern of the Year 2015 (Entries)|author=Dave Greene|date=January 1, 2016|accessdate=February 5, 2018}}</ref>, with no particular need for a formal vote. | + | ===2013=== |
+ | No competition was initially held in 2013. However, it was mentioned in various places that the winner for 2013 was clearly Mike Playle's [[Snark]]<ref>{{cite web|url= | ||
+ | http://conwaylife.com/forums/viewtopic.php?p=7819#p7826|title=Re: Just the place for a Snark!|author=Emerson J. Perkins|date=April 26, 2013|accessdate=February 5, 2018}}</ref><ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?f=7&t=1997#p26363|title=Re: Pattern of the Year 2015 (Entries)|author=Dave Greene|date=January 1, 2016|accessdate=February 5, 2018}}</ref>, with no particular need for a formal vote. A belated vote was organized in early {{year|2018}} by [[77topaz]]. The following patterns were submitted as competition entries by users. | ||
+ | |||
+ | {| class="sortable wikitable" | ||
+ | |- | ||
+ | ! data-sort-type="number" | Final rank | ||
+ | ! data-sort-type="number" | Stars | ||
+ | ! Pattern | ||
+ | ! Author | ||
+ | |- | ||
+ | ! class="unsortable" colspan="4" | Description | ||
+ | |- | ||
+ | | 1 || 34 || [[Snark]] || [[Mike Playle]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[stable]] 90˚ glider [[reflector]] which, with 52 cells and a [[repeat time]] of 43, is both far smaller and far faster than previous such patterns. | ||
+ | |- | ||
+ | | 2 || 31 || [[Loafer]] || [[Josh Ball]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first [[c/7 orthogonal]] spaceship and, with just 20 cells, the smallest spaceship other than the glider and [[xWSS]]es. | ||
+ | |- | ||
+ | | data-sort-value="3" | =3 || 22 || [[CC semi-Snark]] || [[Sergey Petrov]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A small, [[Spartan]] 90˚ glider reflector which functions as a [[period doubler]]. | ||
+ | |- | ||
+ | | data-sort-value="3" | =3 || 22 || [[Linear propagator]] || [[Dave Greene]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A large, engineered pattern which is arguably the first example of a [[replicator]] in Conway's Game of Life, depending on the exact definition used. | ||
+ | |- | ||
+ | | 5 || 17 || Original 16-bit [[still life]] [[synthesis]] project || [[Martin Grant]], [[Mark Niemiec]], [[Matthias Merzenich]], [[Dave Greene]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A project to synthesize all 16-bit still lifes. | ||
+ | |- | ||
+ | | 6 || 15 || [[Period-20 glider gun]] || [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A true period-20 [[glider gun]], the smallest true period known for a gun. | ||
+ | |- | ||
+ | | 7 || 14 || [[135-degree MWSS-to-G]] || [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first fast [[elementary]] [[MWSS]]-to-[[glider]] [[converter]]. | ||
+ | |- | ||
+ | | 8 || 11 || [[Period-40 glider gun]] || [[Adam P. Goucher]], [[Matthias Merzenich]], [[Jason Summers]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A true period-40 [[glider gun]] based on complicated reactions involving [[honey farm]] predecessors, [[:Category:Oscillators with period 5|period-5]] and [[:Category:Oscillators with period 8|period-8]] [[oscillator]]s. | ||
+ | |- | ||
+ | | data-sort-value="9" | =9 || 9 || [[AK-94]] and [[Pre-pulsar shuttle 22]] || [[Mike Playle]], [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | Two constructions based on a new [[catalyst]] found by [[Mike Playle]]. | ||
+ | |- | ||
+ | | data-sort-value="9" | =9 || 9 || [[Standard spaceship eater]] || [[Matthias Merzenich]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[still life]] capable of [[eater|eating]] every type of [[standard spaceship]]. | ||
+ | |- | ||
+ | | data-sort-value="11" | =11 || 8 || [[p29 reflector]] || [[Matthias Merzenich]], [[Noam Elkies]], [[David Buckingham]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[reflector]] based on a [[Pre-pulsar shuttle 29]] variant. | ||
+ | |- | ||
+ | | data-sort-value="11" | =11 || 8 || [[c/4 diagonal wickstretcher]] || [[Matthias Merzenich]], [[Jason Summers]], [[Paul Tooke]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A [[fencepost]] for a partial [[c/4 diagonal]] [[wickstretcher]] found by [[Paul Tooke]] in {{year|2004}}. | ||
+ | |- | ||
+ | | 13 || 7 || [[c/5 orthogonal wickstretcher]] || [[Matthias Merzenich]], [[Hartmut Holzwart]], [[Jason Summers]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | The first [[c/5 orthogonal]] [[wickstretcher]] to be found. | ||
+ | |- | ||
+ | | 14 || 5 || [[French kiss]] synthesis || [[Martin Grant]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A 23-glider synthesis for a period [[:Category:Oscillators with period 3|3]] oscillator which, despite its size, previously had no known synthesis. | ||
+ | |- | ||
+ | | data-sort-value="15" | =15 || 4 || [[41P4H1V0]] || [[Jason Summers]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | At the time of its discovery, the second smallest known [[c/4 orthogonal]] spaceship. | ||
+ | |- | ||
+ | | data-sort-value="15" | =15 || 4 || [[138P7]] || [[Karel Suhajda]] | ||
+ | |- class="expand-child" | ||
+ | | colspan="4" | A fairly strong [[:Category:Sparkers with period 7|period 7]] [[sparker]], at a time when few were known. It was used to create a [[:Category:Oscillators with period 14|period 14]] [[traffic light]] [[hassler]]. | ||
+ | |} | ||
− | ==2012== | + | ===2012=== |
No vote was held for 2012, but the following patterns were submitted as competition entries by users. [[137ben]] organized the competition. | No vote was held for 2012, but the following patterns were submitted as competition entries by users. [[137ben]] organized the competition. | ||
Line 329: | Line 606: | ||
| colspan="2" | [http://conwaylife.com/forums/viewtopic.php?f=2&t=148&hilit=p504&start=50#p7201], [http://conwaylife.com/forums/viewtopic.php?f=2&t=148&hilit=p504&start=50#p7205] | | colspan="2" | [http://conwaylife.com/forums/viewtopic.php?f=2&t=148&hilit=p504&start=50#p7201], [http://conwaylife.com/forums/viewtopic.php?f=2&t=148&hilit=p504&start=50#p7205] | ||
|- | |- | ||
− | | [[Period-4 90 degree reflector]] || [[Karel Suhajda]] | + | | [[Period-4 90-degree reflector]] || [[Karel Suhajda]], [[Matthias Merzenich]] |
|- class="expand-child" | |- class="expand-child" | ||
| colspan="2" | [http://conwaylife.com/forums/viewtopic.php?p=7356#p7356] | | colspan="2" | [http://conwaylife.com/forums/viewtopic.php?p=7356#p7356] | ||
|} | |} | ||
− | ==2011== | + | ===2011=== |
The following patterns were voted on for the 2011 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. [[Adam P. Goucher]] organized the competition. | The following patterns were voted on for the 2011 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. [[Adam P. Goucher]] organized the competition. | ||
Line 364: | Line 641: | ||
| data-sort-value="4" | =4 || 6 || [[Oblique antstretcher]] || [[Matthias Merzenich]] | | data-sort-value="4" | =4 || 6 || [[Oblique antstretcher]] || [[Matthias Merzenich]] | ||
|- class="expand-child" | |- class="expand-child" | ||
− | | colspan="4" | An [[antstretcher]] combining a | + | | colspan="4" | An [[antstretcher]] combining a [http://conwaylife.com/forums/viewtopic.php?f=2&t=648 c/5 orthogonal component] with a c/4 diagonal component previously found by [[Hartmut Holzwart]] in 2006. |
|- | |- | ||
| data-sort-value="6" | =6 || 5 || [[1×N quadratic growth]] || [[Stephen Silver]] | | data-sort-value="6" | =6 || 5 || [[1×N quadratic growth]] || [[Stephen Silver]] | ||
Line 387: | Line 664: | ||
|} | |} | ||
− | ==2010== | + | ===2010=== |
The following patterns were voted on for the 2010 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. [[Adam P. Goucher]] organized the competition. | The following patterns were voted on for the 2010 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. [[Adam P. Goucher]] organized the competition. | ||
Line 472: | Line 749: | ||
==External links== | ==External links== | ||
+ | |||
+ | ===2018=== | ||
+ | {{LinkForumThread|f=2|t=3645|title=Pattern of the Year 2018 competition}} (entries) | ||
+ | {{LinkForumThread|f=2|t=3665|title=Pattern of the Year 2018 competition: Voting}} | ||
+ | {{LinkForumThread|p=68446|title=Re: Pattern of the Year 2018 competition: Voting}} (results) | ||
===2017=== | ===2017=== | ||
+ | {{LinkForumThread|f=2|t=3207|title=Pattern of the Year 2017}} (entries) | ||
{{LinkForumThread|f=2|t=3239|title=Pattern of the Year 2017 -- votes}} | {{LinkForumThread|f=2|t=3239|title=Pattern of the Year 2017 -- votes}} | ||
− | {{LinkForumThread| | + | {{LinkForumThread|p=56715|title=Re: Pattern of the Year 2017 -- votes}} (results) |
===2016=== | ===2016=== | ||
Line 487: | Line 770: | ||
===2014=== | ===2014=== | ||
− | {{LinkForumThread|f=7|t=2037|title=Pattern of the Year 2014 (Entries)}} | + | {{LinkForumThread|f=7|t=2037|title=Pattern of the Year 2014 (Entries)}} (initial entries) |
+ | {{LinkForumThread|f=2|t=3278|title=Belated Pattern of the Year 2014 competition}} (belated entries) | ||
+ | {{LinkForumThread|f=2|t=3282|title=Belated Pattern of the Year 2014 competition: Voting}} | ||
+ | {{LinkForumThread|p=57457|title=Re: Belated Pattern of the Year 2014 competition: Voting}} (results) | ||
+ | |||
+ | ===2013=== | ||
+ | {{LinkForumThread|f=2|t=3308|title=Belated Pattern of the Year 2013 competition}} (entries) | ||
+ | {{LinkForumThread|f=2|t=3324|title=Belated Pattern of the Year 2013 competition: Voting}} | ||
+ | {{LinkForumThread|p=58573|title=Re: Belated Pattern of the Year 2013 competition: Voting}} (results) | ||
===2012=== | ===2012=== |
Latest revision as of 19:38, 5 October 2019
The Pattern of the Year competition is held each year on the ConwayLife.com forums. Users are invited to submit interesting and noteworthy patterns, their own or others'; following discussion, a final list is then curated, and a public vote held. There are only two hard and fast rules: patterns must have been discovered in the year in question; and patterns must work in B3/S23 (Conway's Game of Life).
Contents
Summary
Year | First place | Second place | Third place |
---|---|---|---|
2018 | Sir Robin | 0E0P metacell | Reverse caber-tosser |
2017 | 2-engine Cordership | Tanner's p46 | Stable pulse-dividers |
2016 | Caterloopillars | Copperhead | Grandfather-less Pattern |
2015 | Syringe | Simkin glider gun | Demonoids |
2014 | Waterbear | Centipede | Half-baked knightship |
2013 | Snark | Loafer | CC semi-Snark and Linear propagator† |
2011 | Fully universal Turing machine and Lobster† | Garden of Eden 6 | |
2010 | Gemini | Phi calculator | c/5 diagonal rake |
2004 | Caterpillar‡ |
‡ Result of informal consensus rather than formal competition;
† Patterns were tied on number of votes.
Results by year
2018
The following patterns were voted on for the 2018 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. 77topaz organized the competition.
Final rank | Stars | Pattern | Author |
---|---|---|---|
Description | |||
1 | 106 | Sir Robin | Adam P. Goucher, Tomas Rokicki |
A (2,1)c/6 spaceship, and the first elementary oblique spaceship discovered in Conway's Game of Life. | |||
2 | 90 | 0E0P metacell | Adam P. Goucher |
A unit cell which does not require a background grid of metacells to function, proving the existence of unusual classes of patterns such as quadratic replicators and RROs in Conway's Game of Life "imported" from other rules. | |||
3 | 79 | Reverse caber-tosser | Adam P. Goucher, Dave Greene, Chris Cain |
A complex mechanism which theoretically allows any glider-synthesisable pattern to be synthesised in just 35 gliders, by encoding the pattern's complexity into the distance between the gliders rather than their quantity. | |||
4 | 52 | Turing Machine simulator | Michael Simkin |
A script which can simulate arbitrary Turing machines in Conway's Game of Life using a finite tape. | |||
5 | 45 | Camelship | Chris Cain |
A self-constructing oblique spaceship with the minimum possible step size for a slope 3 spaceship. | |||
=6 | 41 | New self-constructing spaceships | Dave Greene |
A loopship, along with HashLife-friendly variants of Orthogonoid and Demonoid. | |||
=6 | 41 | c/2 diagonal telegraph recipe | Martin Grant |
A 140-glider recipe to create a detectable c/2 diagonal signal traveling non-destructively along an arbitrarily long barge or ship. | |||
8 | 35 | Period-52 glider gun | Dave Greene, Matthias Merzenich, Adam P. Goucher, Chris Cain, Entity Valkyrie |
The first true-period 52 gun constructed, which was later vastly reduced using 53P13. | |||
9 | 34 | Stable line crosser | Dave Greene, Goldtiger997, Chris Cain |
A modernized rehash of a periodic circuit for transmitting a glider across a diagonal line of cells found by David Bell. | |||
=10 | 33 | Jormungant's G-to-H | Louis-François Handfield (Jormungant) |
A 2G-to-H converter with a short recovery time, allowing for the optimization of numerous guns. | |||
=10 | 33 | Period-33 glider gun | Arie Paap, Matthias Merzenich |
The first true-period 33 gun, which uses two interacting copies of Jason's p33. | |||
=10 | 33 | Infinite distinct diagonal spaceships and infinite distinct orthogonal spaceships | Adam P. Goucher, Goldtiger997 |
Two guns which each use sqrtgun mechanisms to fire infinitely many distinct spaceships, all of which are puffers whose outputs are eaten by spaceships arbitrarily far away. | |||
=13 | 31 | Sierpinski triangle generator | Luka Okanishi |
A breeder that outputs gliders in the shape of a growing Sierpinski triangle. | |||
=13 | 31 | Cottonmouth | AforAmpere |
An infinitely extensible pushalong for the copperhead and fireship. | |||
=13 | 31 | 5c/9 signal injector | Rhombic, Simon Ekström, Chris Cain |
A method of transforming Herschels to 5c/9 drifters with a recovery time of 62. | |||
16 | 30 | p46 gliderless LWSS gun | Nathaniel Johnston |
The smallest known gliderless LWSS gun, using three copies of Tanner's p46. | |||
=17 | 29 | Bronco | Tanner Jacobi |
The second elementary glider-to-Herschel converter to be discovered. | |||
=17 | 29 | New high-period oscillators | carybe |
A collective entry for p36 shuttle, 34P14 shuttle, 68P16, and p64 thunderbird hassler, all discovered using apgsearch. | |||
19 | 28 | Quinti-Snarks | Tanner Jacobi |
Period-quintupling reflectors useful for guns. | |||
20 | 27 | Pseudo-period xWSS guns | Chris Cain, Adam P. Goucher, Entity Valkyrie, 2718281828, Goldtiger997 |
New xWSS guns with pseudo-periods ranging from 18 to 21, breaking the previous record of 22. | |||
21 | 26 | Self-constructing oscillator with strict volatility one | Dave Greene, Goldtiger997 |
A method of constructing strictly volatile oscillators with any period 3,506,910 or above. | |||
22 | 25 | p3 bumper | Arie Paap, Tanner Jacobi |
A periodic reflector to work at p39, which also allowed for the construction of a p57 bumper loop | |||
=23 | 24 | Goldtiger997's Amazing 2 in 1 Reusable Multipurpose Minstrel Remover and Detector™ | Goldtiger997 |
A circuit capable of removing every known Minstrel from Sir Robin at the time of its construction. | |||
=23 | 24 | New mid-period sparkers | Dongook Lee, Josh Ball, Martin Grant, Aidan F. Pierce, carybe, Bullet51 |
A collective entry for various sparking oscillators with periods ranging from 7 to 10, including but not limited to 68P9 and 55P10. | |||
=25 | 23 | Minstrel 4 | Entity Valkyrie |
A manually-assembled Sir Robin tagalong which combines Minstrels 1 and 3. | |||
=25 | 23 | Period-doubling fireship tagalong | christoph.r |
A tagalong for a flotilla of three fireships which increases its period to 20. | |||
27 | 22 | p4 bouncer | Arie Paap, Noam Elkies |
The fastest known p4 reflector. | |||
28 | 21 | Huge 2D-extensible wick-supporting pushalong | Hartmut Holzwart |
29 | 20 | Non-monotonic 2c/5 orthogonal spaceship | Arie Paap, Matthias Merzenich, Bullet51 |
=30 | 19 | p9 bouncer | Matthias Merzenich, carybe, Noam Elkies |
A reflector capable of reflecting a p27 glider stream using 68P9, which was found using apgsearch the same day. | |||
=30 | 19 | p6 180-degree reflector and related guns | Arie Paap, Tanner Jacobi, Louis-François Handfield |
A reflector which can be used alongside other sparkers to create arbitrary guns with period (60n+30). | |||
32 | 18 | Fast universal regulators | Dave Greene |
33 | 17 | 42883M | Adam P. Goucher |
A 16×16 soup found by apgsearch, and the longest-lasting known methuselah fitting within a 16×16 bounding box. | |||
34 | 10 | New honey farm hasslers | Tanner Jacobi, Matthias Merzenich |
A collective entry for a few oscillators of periods 36 and 40 which use honey farm-hassling reactions. |
2017
The following patterns were voted on for the 2017 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. Adam P. Goucher organized the competition.
Final rank | Stars | Pattern | Author |
---|---|---|---|
Description | |||
1 | 50 | 2-engine Cordership | Aidan F. Pierce |
A successful refutation of the common belief that 3 engines are required to build a Cordership. | |||
2 | 34 | Tanner's p46 | Tanner Jacobi |
A new sparky period-46 oscillator that various guns can be made from. | |||
3 | 32 | Stable pulse-dividers | Tanner Jacobi |
The Snark and semi-Snark have been joined by new exciting tremi-Snark, quadri-Snark, and semi-cenarks, which are particularly helpful for optimising glider and spaceship guns. | |||
4 | 29 | New Demonoid and Orthogonoid spaceships | Dave Greene, slmake |
Geminoid variants which travel diagonally and orthogonally, respectively, showcasing interesting developments such as MWSS-based signalling and syringe syntheses. | |||
5 | 27 | The efficient 16-bit still life synthesis project | |
All still-lifes of 16 or fewer cells can be constructed at a cost of <= 1 glider per cell. | |||
6 | 26 | Synthesis of 25P3H1V0.2, and reductions of many other small spaceships | Martin Grant, Chris Cain, 2718281828, gmc_nxtman, et al. |
=7 | 24 | Sparse Cordership | David Bell |
All previously-known Corderships required interactions between two or more adjacent switch-engines. This design, on the other hand, allows the individual switch-engines to be separated by arbitrary distances, relying instead on long-range interactions mediated by gliders and stable objects. | |||
=7 | 24 | Hydra | Oscar Cunningham, Dave Greene, slmake |
A single-channel quadratic-growth pattern which constructs an intricate mesh of splitting construction heads in all directions. Some well-positioned eaters prevent this behemoth from cannibalising itself. It uses similar technology to Dave's earlier triple wickstretcher, but is more complex owing to the necessity of splitting signals. | |||
9 | 22 | Three-glider synthesis of a switch engine | Luka Okanishi |
It was previously believed that 4 gliders were necessary and sufficient to synthesise a switch-engine. | |||
10 | 21 | Synthesis of N-bit still lifes in 38 to 39 gliders | Tanner Jacobi, Adam P. Goucher, Chris Cain |
Syntheses of N-bit still lifes for all sufficiently large natural numbers N, using a bounded number of gliders (38 or 39, depending on the parity of N). | |||
11 | 18 | Life object having a bounded population with an unknown fate | David Bell |
A pattern which either becomes stable, oscillatory, or aperiodic, depending on the behaviour of 7 under the generalised Collatz iteration which maps a positive integer N to 5N+1 (if N odd) or N/2 (if N even). | |||
=12 | 17 | Completed Quest for Tetris challenge | PhiNotPi, El'endia Starman, K Zhang, Muddyfish, Kritixi Lithos, Mego, Quartata, et al. |
A game of Tetris simulated on a digital computer built out of logic gates formed from Brice Due's metacells. | |||
=12 | 17 | Gliderless unit cell | Peter Naszvadi |
A cellular automata polyglot (pattern which runs in a range of rules) based on p46 technology, establishing Turing-completeness of B3[8]/S23[8] provided infinite patterns are permitted. | |||
=12 | 17 | Record setting Garden of Eden | Steven Eker |
An orphan with 45 live cells and 43 dead cells, the fewest total number of specified cells among all known orphans. | |||
15 | 16 | Several new stable signal converters | Dave Greene, Goldtiger997 |
16 | 15 | The second elementary c/7 orthogonal spaceship | Matthias Merzenich |
The narrowest odd-symmetric c/7 spaceship. | |||
17 | 14 | Much smaller spiral growth pattern | Dave Greene, slmake |
A tightly-coiled loop of data reflected in a double-spiral of Snarks instructs a construction arm to encircle the construction indefinitely, gradually constructing an unbounded spiral of further Snarks. | |||
18 | 13 | p148 B29 gun | Luka Okanishi, Dave Greene, Adam P. Goucher |
A compact gun for a c/4 diagonal spaceship. | |||
=19 | 12 | Cumulative sum generator | gameoflifeboy |
=19 | 12 | Triple wickstretcher | Dave Greene |
A single-channel glider loop which extends zigzags of Snarks. | |||
=19 | 12 | The first 3c/7 orthogonal puffer | Luka Okanishi |
Exclusively using 3c/7 spaghetti monsters (the only known spaceship of its velocity). Owing to its faster-than-c/4 speed, a c/2 spaceship is necessary to catch up with the front of the engine to continue the reaction. | |||
22 | 11 | The first c/6 orthogonal puffers | Nico Brown, Matthias Merzenich |
Messy albeit elegant puffers where gliders collide with large sparky spaceships in perpetuity. | |||
23 | 9 | Fixed-length tail for a lightspeed bubble of arbitrary width in the zebra stripes agar | Arie Paap |
Gabriel Nivasch showed that arbitrary-width lightspeed bubbles in the zebra stripes agar are supportable, requiring a fixed-length head and variable-length tail. It was hitherto an open problem to replace the variable-length tail with a fixed-length counterpart. | |||
24 | 7 | 28P7.3 | Bullet51 |
The smallest known (tied with previous record) period-7 oscillator. | |||
25 | 6 | Runny nose | 83bismuth38 |
A period-3 oscillator which showed an unexpected gap in lists of small objects. |
2016
The following patterns were voted on for the 2016 competition. Users were able to vote on as many patterns as they wished, awarding up to three stars to each one. Alexey Nigin organized the competition.
Final rank | Stars | Pattern | Author |
---|---|---|---|
Description | |||
1 | 49 | Caterloopillars | Michael Simkin, David Bell et al. |
Previously, all engineered spaceships had speeds that were either fixed (Caterpillar) or adjustable but always very low (Gemini). Caterloopillars have the best of both worlds: their speed is variable, and the fastest ones can travel as quickly as c/4. So far all caterloopillars have been orthogonal, but a project to build one with adjustable slope is underway. | |||
2 | 47 | Copperhead | zdr, Simon Ekström et al. |
In addition to being the first of its speed, this c/10 orthogonal spaceship is so small that it is surprising nobody discovered it before. Its small size allowed the creation of a 22-glider synthesis, and a gun was made soon afterwards. A pseudo-tagalong found a bit later made it possible to create c/10 puffers and rakes. Much of copperhead's fame is due to the mystery surrounding its discovery: it was posted by a newly-joined anonymous user who became inactive afterwards. | |||
3 | 39 | Grandfather-less Pattern | mtve |
"Is there a configuration which has a father but no grandfather?" This is the statement of the grandfather problem, one of the longest-standing open problems in Life, having been unsolved for decades in spite of a $50 prize offer from John Conway Himself in September 1972. It was only this year that the first grandfather-less pattern was discovered using a SAT solver. | |||
4 | 31 | Spaghetti monster | Tim Coe |
This is the first spaceship with a speed of 3c/7, which has been one of the most sought-after speeds in the last 15 years. The ship was discovered with knightt, a relatively new search program. The search took about two months, even though the width was continuously tweaked to make it faster. | |||
5 | 28 | 8-bit computer | Coban |
This is the first 8-bit computer in any cellular automaton, and easily the most realistic computer ever constructed in Life. It has a ROM which contains the program, consisting of 32 instructions which are stored in 21 bits each. For RAM, it has a register bank containing eight 8-bit registers. For output, it has a "printer" with 8 pixels. | |||
6 | 19 | Herschel splitter | Luka Okanishi |
This is an elegant solution to an old circuitry problem: a direct Herschel signal splitter that recovers in less than a hundred ticks. People had been looking for something exactly like this for very nearly twenty years, ever since the original 1996-97 universal set of Herschel conduits. It was made by extending an Fx119 conduit with a partial copy of itself to extract the second Herschel output. | |||
7 | 14 | Bumper | Tanner Jacobi |
This reflector mechanism can be attached to a variety of sparky oscillators to make reflectors of the corresponding periods. Since the resulting reflectors have different timing than the Snark, they solve a range of "my glider is in the wrong phase" wiring problems. A small wave of record-breaking guns followed soon after the bumper's debut. | |||
=8 | 12 | New gun periods | Luka Okanishi, thunk, Matthias Merzenich, Chris Cain |
In three days, three new true gun periods were discovered: p61, p58, and p57. | |||
=8 | 12 | Statorless p5 | Josh Ball |
This is the first statorless oscillator of its period. Since the period is prime, the lack of stator implies that the oscillator is strictly volatile, which is a rare property. | |||
10 | 11 | Aperiodic tiles | NotLiving |
This is an implementation of a particular set of Wang tiles in the Game of Life. The Life tiles form a stable pattern if and only if the corresponding arrangement of Wang tiles is valid. Since this set of Wang tiles can only form aperiodic arrangements, so can the Life tiles. | |||
11 | 10 | Rich's p16 | Rich Holmes |
This is a small p16 oscillator that appeared naturally. It is compact for its period and has easily accessible sparks. Most notably, it can filter glider streams similarly to the blocker, which led to reductions in many guns that previously utilized other filter mechanisms. | |||
12 | 9 | Small GoEs | Steven Eker |
A few record-breaking Gardens of Eden and orphans were found, including an orphan with only 89 defined cells. | |||
=13 | 6 | 15-bit still life syntheses | Charlie Neder, Goldtiger997, Bob Shemyakin, Mark Niemiec, Martin Grant, Chris Cain, et al. |
A project to find syntheses of all 15-bit still lifes in under 15 gliders turned out to be a very prolific collaboration. Using Catagolue soups along with known and new converter mechanisms, several hundred new syntheses were created. The goal was achieved in just 41 days. | |||
=13 | 6 | p7 sparker | Dongook Lee |
This pattern adds a new relatively strong HW emulator to the p7 collection, which previously only had the pipsquirter. It was used to complete a p28 wick with no prior stabilization. |
2015
The following patterns were voted on for the 2015 competition. Users chose as many pattern as they wanted and ranked them from best to worst; the votes were then tallied with a custom Delphi program.^{[1]} Alexey Nigin organized the competition.
Final rank^{[2]} | Points | Pattern | Author |
---|---|---|---|
Description | |||
1 | 107 | Syringe | Tanner Jacobi |
Syringe is the fast G-to-H that Herschel plumbers have been wishing for a decade, also allowing for fast signal splitters and other much more efficient logic circuits, including self-constructing circuitry. | |||
2 | 102 | Simkin glider gun | Michael Simkin |
The Simkin glider gun is the smallest gun ever constructed. The previous record holder, the Gosper glider gun, was constructed as long ago as 1970. | |||
3 | 91 | Demonoids | Chris Cain and Dave Greene |
Demonoids are highly-simplified, diagonally-moving variants of the original Gemini spaceship. The 0hd Demonoid is the only case where a spaceship gun pattern was completed before the actual spaceship. | |||
4 | 55 | Syntheses of spaceships | Martin Grant, Tanner Jacobi, and Chris Cain |
Syntheses of B29, X66, half-X66 with HWSS, Pushalong 1, 25P3H1V0.2, 30P5H2V0, 30P4H2V0.4, a pufferfish spaceship, and the weekender were discovered in 2015, which exceeds the number of spaceship syntheses found in any previous year, including 1970. | |||
5 | 48 | Recursive filter | Alexey Nigin and Kiran Linsuain |
Recursive Filter allows the creation of extremely slow-growing patterns. A single recursive filter gives the growth rate of log*(t), which is slower than the growth rate of any pattern constructed before. Recursive filters can be stacked to obtain even more mind-boggling growth rates. | |||
6 | 45 | Glider-to-Weekender | Chris Cain |
G-to-Weekender splits a single input glider into 82 separate signals, and successfully synchronizes them to produce an output weekender spaceship. The previous record synchronization was Goucher's glider-to-Cordership converter, which produced 19 synchronized gliders from one input signal. | |||
7 | 34 | Bob Shemyakin's syntheses | Bob Shemyakin |
Bob Shemyakin's syntheses are often cheaper than what could be found in Mark Niemiec's database (and those were already pretty good). This was the result of a lot of patient script-writing and collecting collision results, starting with adding two gliders (within a certain range) to every possible two-glider collision. Many new 4-, 5-, and 6-glider still life recipes were found, and optimizations for many larger still lifes up to 15 bits. | |||
8 | 33 | HBK gun | Chris Cain and Michael Simkin |
HBK gun is an extremely large and complex gun that fires parallel HBKs. It is the only gun to produce non-self-constructing macro-spaceships. | |||
9 | 31 | Herschel-to-MWSS | Tanner Jacobi |
H-to-MWSS is the smallest converter of Herschels into (non-glider) standard spaceships. Prior constructions of XWSSs required many Herschel tracks and a large area. | |||
10 | 30 | Sawtooth 177 | thunk, Tanner Jacobi, Chris Cain, Adam P. Goucher, and Dave Greene |
Sawtooth 177 is currently the smallest known sawtooth. | |||
11 | 29 | Single-lane construction arm toolkit | Simon Ekström |
The Single-Lane Construction Arm Toolkit is an important result for simplifying self-constructing circuitry, especially those where a recipe needs to be duplicated, as in the linear propagator, not just interpreted as in the Demonoid and Gemini. | |||
12 | 28 | Elementary conduits collection | Matthias Merzenich, Dave Greene, and thunk |
The Elementary Conduits Collection, recently significantly expanded with new discoveries, is a one-stop shop for the building blocks of stable tracks. It was organized to catalogue all converters between likely active reactions, not just from Herschel to Herschel. | |||
13 | 26 | (L|M)WSS-to-glider | Ivan Fomichev and Dongook Lee |
(L|M)WSS-to-G is the second known small conduit that turns standard spaceships into gliders, and the first that accepts LWSSs. | |||
14 | 23 | Collection of guns | Chris Cain, Simon Ekström, Scot Ellison, and Dave Greene |
The Collection of Guns is an ambitious project to collect new smaller glider guns using the syringe and other recent discoveries. All guns in the range 78-999 were eventually reduced to bounding boxes less than 8000 cells. | |||
15 | 19 | Dragon lightsaber | Martin Grant |
Dragon Lightsaber is a mysterious pattern that seems to calculate some sequence. It is this type of a lightsaber. | |||
16 | 14 | Quadratic sawtooth | Martin Grant, Aidan F. Pierce, Dongook Lee, and Alexey Nigin |
Quadratic sawtooth is a sawtooth whose population peaks grow quadratically. | |||
17 | 13 | t*log(log(t)) growth | Alexey Nigin and Michael Simkin |
t*log(log(t)) growth is pattern with an exotic growth rate. That growth rate has long been achievable via exponential filters, but this pattern utilizes a completely different design. |
2014
The following patterns were submitted as competition entries by users. Patterns were not voted on at the time, but a belated vote was held in early 2018, featuring three further submissions in addition to the original nine. Kiran Linsuain organized the competition; 77topaz organized the 2018 vote.
Final rank | Stars | Pattern | Author |
---|---|---|---|
Description | |||
1 | 30 | Waterbear | Brett Berger and Ivan Fomichev |
The first fast oblique spaceship, moving at speed (23,5)c/79. | |||
2 | 23 | Centipede | Chris Cain |
A large, engineered spaceship that moves at 31c/240, using a unique reaction. | |||
3 | 21 | Half-baked knightship | Adam P. Goucher, Chris Cain, Dave Greene, and Ivan Fomichev |
An oblique spaceship that moves with displacement (6,3), using the half-bakery reaction. | |||
=4 | 17 | Switch engine ping-pong | Michael Simkin |
A 23-cell quadratic growth pattern, the smallest known. | |||
=4 | 17 | Syntheses for all 17- and 18-bit still lifes | Martin Grant, Mark Niemiec, and Matthias Merzenich |
=6 | 13 | Pufferfish | Richard Schank |
A period 12 c/2 puffer that was used to make the first wholly high-period c/2 spaceship. | |||
=6 | 13 | Spiral growth [1] | Dave Greene |
A self-constructing pattern that grows in an outward spiral. | |||
=8 | 12 | Dart and crab syntheses [2] | Martin Grant, Mark Niemiec, Michael Simkin, Ivan Fomichev, Tanner Jacobi, and Brett Berger |
Glider syntheses for small spaceships that did not previously have any. | |||
=8 | 12 | Weekender distaff | Ivan Fomichev |
The first 2c/7 orthogonal rake, consisting of a long chain of weekenders perturbing debris. | |||
10 | 8 | Honey thieves^{†} | Matthias Merzenich |
The smallest known period 17 oscillator, and the first one with a known glider synthesis. | |||
11 | 7 | p27 billiard table oscillator^{†} | Matthias Merzenich |
An oscillator in which period 5, period 8 and period 3 rotors phase shift each other. | |||
12 | 6 | LCM oscillators^{†} | Noam Elkies |
Oscillators featuring multiple rotors that interact in complicated ways. |
^{†}not originally submitted in 2015.
2013
No competition was initially held in 2013. However, it was mentioned in various places that the winner for 2013 was clearly Mike Playle's Snark^{[3]}^{[4]}, with no particular need for a formal vote. A belated vote was organized in early 2018 by 77topaz. The following patterns were submitted as competition entries by users.
Final rank | Stars | Pattern | Author |
---|---|---|---|
Description | |||
1 | 34 | Snark | Mike Playle |
A stable 90˚ glider reflector which, with 52 cells and a repeat time of 43, is both far smaller and far faster than previous such patterns. | |||
2 | 31 | Loafer | Josh Ball |
The first c/7 orthogonal spaceship and, with just 20 cells, the smallest spaceship other than the glider and xWSSes. | |||
=3 | 22 | CC semi-Snark | Sergey Petrov |
A small, Spartan 90˚ glider reflector which functions as a period doubler. | |||
=3 | 22 | Linear propagator | Dave Greene |
A large, engineered pattern which is arguably the first example of a replicator in Conway's Game of Life, depending on the exact definition used. | |||
5 | 17 | Original 16-bit still life synthesis project | Martin Grant, Mark Niemiec, Matthias Merzenich, Dave Greene |
A project to synthesize all 16-bit still lifes. | |||
6 | 15 | Period-20 glider gun | Matthias Merzenich |
A true period-20 glider gun, the smallest true period known for a gun. | |||
7 | 14 | 135-degree MWSS-to-G | Matthias Merzenich |
The first fast elementary MWSS-to-glider converter. | |||
8 | 11 | Period-40 glider gun | Adam P. Goucher, Matthias Merzenich, Jason Summers |
A true period-40 glider gun based on complicated reactions involving honey farm predecessors, period-5 and period-8 oscillators. | |||
=9 | 9 | AK-94 and Pre-pulsar shuttle 22 | Mike Playle, Matthias Merzenich |
Two constructions based on a new catalyst found by Mike Playle. | |||
=9 | 9 | Standard spaceship eater | Matthias Merzenich |
A still life capable of eating every type of standard spaceship. | |||
=11 | 8 | p29 reflector | Matthias Merzenich, Noam Elkies, David Buckingham |
A reflector based on a Pre-pulsar shuttle 29 variant. | |||
=11 | 8 | c/4 diagonal wickstretcher | Matthias Merzenich, Jason Summers, Paul Tooke |
A fencepost for a partial c/4 diagonal wickstretcher found by Paul Tooke in 2004. | |||
13 | 7 | c/5 orthogonal wickstretcher | Matthias Merzenich, Hartmut Holzwart, Jason Summers |
The first c/5 orthogonal wickstretcher to be found. | |||
14 | 5 | French kiss synthesis | Martin Grant |
A 23-glider synthesis for a period 3 oscillator which, despite its size, previously had no known synthesis. | |||
=15 | 4 | 41P4H1V0 | Jason Summers |
At the time of its discovery, the second smallest known c/4 orthogonal spaceship. | |||
=15 | 4 | 138P7 | Karel Suhajda |
A fairly strong period 7 sparker, at a time when few were known. It was used to create a period 14 traffic light hassler. |
2012
No vote was held for 2012, but the following patterns were submitted as competition entries by users. 137ben organized the competition.
Pattern | Author |
---|---|
Description | |
37P4H1V0 | Josh Ball |
A 37-cell c/4 orthogonal spaceship by Josh Ball. In terms of minimum population, it is the smallest known c/4 orthogonal spaceship. | |
Statorless p3 | Jason Summers |
The first statorless period-3 oscillator. | |
444-tick glider-to-Herschel converter | Sergey Petrov |
This is the fastest known stable glider-to-Herschel converter/90-degree glider reflector currently known. | |
G4 Herschel merge circuit | Sergey Petrov |
[3], [4], [5] | |
Ambidextrous G5 Herschel transceiver | Sergey Petrov |
[6], [7] | |
Period-4 90-degree reflector | Karel Suhajda, Matthias Merzenich |
[8] |
2011
The following patterns were voted on for the 2011 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. Adam P. Goucher organized the competition.
2010
The following patterns were voted on for the 2010 competition. Users were able to vote for up to three patterns, but not their own patterns; all votes were weighted equally. Adam P. Goucher organized the competition.
Final rank^{[2]} | Votes | Pattern | Author |
---|---|---|---|
Description | |||
1 | 14 | Gemini | Andrew J. Wade |
[13] | |||
2 | 9 | Phi calculator | Adam P. Goucher |
[14] | |||
3 | 6 | c/5 diagonal rake | Matthias Merzenich |
[15] | |||
=4 | 5 | Pianola breeders | Paul Tooke |
[16] | |||
=4 | 5 | p31 glider loop | Matthias Merzenich |
[17] | |||
6 | 4 | Gemini guns | Dave Greene |
[18] | |||
=7 | 2 | Sawtooth 260 | David Bell |
[19] | |||
=7 | 2 | c/5 orthogonal greyships | Hartmut Holzwart |
[20] | |||
9 | 1 | p45 glider gun | Matthias Merzenich |
[21] | |||
=10 | 0 | MWSS heisenburp | Martin Grant |
[22] | |||
=10 | 0 | p37 glider loop | Nicolay Beluchenko |
[23] | |||
=10 | 0 | Flying wing spaceship | Emerson J. Perkins |
[24] |
Also see
References
- ↑ Alexey Nigin (February 11, 2016). "Re: Pattern of the Year 2015 (Votes)". ConwayLife.com forums. Retrieved on July 20, 2017.
- ↑ ^{2.0} ^{2.1} ^{2.2} Alexey Nigin (February 11, 2016). "Re: Pattern of the Year 2015 (Votes)". ConwayLife.com forums. Retrieved on July 20, 2017.
- ↑ Emerson J. Perkins (April 26, 2013). "Re: Just the place for a Snark!". Retrieved on February 5, 2018.
- ↑ Dave Greene (January 1, 2016). "Re: Pattern of the Year 2015 (Entries)". Retrieved on February 5, 2018.
External links
2018
- Pattern of the Year 2018 competition (discussion thread) at the ConwayLife.com forums (entries)
- Pattern of the Year 2018 competition: Voting (discussion thread) at the ConwayLife.com forums
- Re: Pattern of the Year 2018 competition: Voting (discussion thread) at the ConwayLife.com forums (results)
2017
- Pattern of the Year 2017 (discussion thread) at the ConwayLife.com forums (entries)
- Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums
- Re: Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums (results)
2016
- Pattern of the Year 2016 (Entries) (discussion thread) at the ConwayLife.com forums
- Pattern of the Year 2016 (Votes) (discussion thread) at the ConwayLife.com forums
- Pattern of the Year 2016 (Results) (discussion thread) at the ConwayLife.com forums
2015
- Pattern of the Year 2015 (Entries) (discussion thread) at the ConwayLife.com forums
- Pattern of the Year 2015 (Votes) (discussion thread) at the ConwayLife.com forums
2014
- Pattern of the Year 2014 (Entries) (discussion thread) at the ConwayLife.com forums (initial entries)
- Belated Pattern of the Year 2014 competition (discussion thread) at the ConwayLife.com forums (belated entries)
- Belated Pattern of the Year 2014 competition: Voting (discussion thread) at the ConwayLife.com forums
- Re: Belated Pattern of the Year 2014 competition: Voting (discussion thread) at the ConwayLife.com forums (results)
2013
- Belated Pattern of the Year 2013 competition (discussion thread) at the ConwayLife.com forums (entries)
- Belated Pattern of the Year 2013 competition: Voting (discussion thread) at the ConwayLife.com forums
- Re: Belated Pattern of the Year 2013 competition: Voting (discussion thread) at the ConwayLife.com forums (results)
2012
- Pattern of the Year 2012 (discussion thread) at the ConwayLife.com forums
2011
- Pattern of the Year 2011 (discussion thread) at the ConwayLife.com forums
- Votes for Pattern of the Year 2011 (discussion thread) at the ConwayLife.com forums
2010
- Votes for Pattern of the Year 2010 (discussion thread) at the ConwayLife.com forums
- Pattern of the Year 2010 competition (discussion thread) at the ConwayLife.com forums