Tanner's p46

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Tanner's p46
x = 13, y = 26, rule = B3/S23 2b2o9b$2bo10b$3bo9b$2b2o9b$13b$9b2o2b$9bo3b$10bo2b$9b2o2b$b2o10b$b2o6b 2o2b$o7bobo2b$b2o6bo3b$b2o7b3o$12bo$13b$13b$13b$13b$13b$13b$b2o10b$b2o 2b2o6b$5bobo5b$7bo5b$7b2o4b! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 640 WIDTH 600 THUMBSIZE 3 ZOOM 21 X -4 GPS 23 ]]
Pattern type Oscillator
Number of cells 41
Bounding box 23 × 26
Period 46
Mod 46
Heat 21.87
Volatility 0.87
Strict volatility 0.87
Discovered by Tanner Jacobi
Year of discovery 2017

Tanner's p46 is a period-46 oscillator that was found by Tanner Jacobi on October 20, 2017[1] involving a pi-heptomino running a small conduit containing a PT8P and a PT38P.

Tanner's p46 ranked second place in the Pattern of the Year 2017 competition on the ConwayLife.com forums, behind the 2-engine Cordership.[2]

Synthesis

Mark Niemiec posted a trivial 19-glider synthesis of Tanner's p46 two hours after its discovery.[3] This can be reduced to 15 gliders to produce a stator variant[4] that replaces the two snakes with eater 1s.

Uses

Tanner's p46 gives out phi sparks, making it useful for gun constructions. For example, David Bell used Tanner's p46 and a twin bees shuttle to build a period 46 glider gun (shown below) on October 21, 2017.[5]

x = 31, y = 44, rule = B3/S23 17boo5boo$17boo5boo11$17bo7bo$15boboo5boobo$15bo3booboo3bo$16bo3bobo3b o$17b3o3b3o10$14bo14bo$13b3o14bo$12bobobo11b3o$12bobobo$10boob3oboo$9b obooboboobo$3boo3boobo5boboo$3boo4boobo3boboobboboo$10b3o3b3o3boobo$$ bboo$3bo$3o$o13bo$13boboboboo$12bobooboobo$12bo$11boo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ MAXGRIDSIZE 9 HEIGHT 500 WIDTH 600 THUMBSIZE 2 ZOOM 10 GPS 23 AUTOSTART ]]
p46 glider gun using Tanner's p46
(click above to open LifeViewer)
RLE: here Plaintext: here

The same day, Matthias Merzenich built a p46 gliderless MWSS gun using two copies of Tanner's p46[6] (shown below). In June 2018, Nathaniel Johnston built a p46 gliderless LWSS gun using three copies of the oscillator.[7]

x = 40, y = 29, rule = B3/S23 6bo$6b3o$9bo$8b2o$2b2o$3bo$2bo$2b2o2$2b2o7bobo2bobo$2bobo6bo2bo3bo$3bo 5b2o3bobobo$3o7b3obo$o6b2o5b2o8b3o$7b2o4b2o8bo3bo$7b2o3bo9bo5bo$7b2obo bo8bo3bo3bo$7b2obobo8bo7bo5b2o$21bobo3bobo5b2o$17b2o3b2o3b2o$10b2o4bob o$6b2o2b2o4bo19b2o$5bobo7b2o19bo$5bo31b3o$4b2o19bo13bo$19b2obobobo$19b ob2ob2obo$27bo$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ MAXGRIDSIZE 9 HEIGHT 360 WIDTH 650 THUMBSIZE 2 ZOOM 10 GPS 23 AUTOSTART ]]
p46 gliderless MWSS gun using Tanner's p46
(click above to open LifeViewer)
RLE: here Plaintext: here

Gallery

x = 10, y = 10, rule = B3/S23 5b2o$5bo$7bo$6b2o2$6b2o$3o2bobo$obo3bo$obo4b3o$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
PT8P
(click above to open LifeViewer)
RLE: here Plaintext: here
+
x = 26, y = 8, rule = B3/S23 2o8b3o8b2o$o2bo6bobo8b2o$2b2o6bobo2$22b2o$22bo$23b3o$25bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
PT38P
(click above to open LifeViewer)
RLE: here Plaintext: here
The components that form Tanner's p46

References

  1. Tanner Jacobi (2017-10-20). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. Dave Greene (February 19, 2018). Re: Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums
  3. Mark Niemiec (October 20, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. xp46_gy6178kc0c4oz1156yb11oge2zx33y333433 at Adam P. Goucher's Catagolue
  5. David Bell (October 21, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  6. Matthias Merzenich (October 21, 2017). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  7. Nathaniel Johnston (2018-06-27). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums

External links