## 17 in 17: Efficient 17-bit synthesis project

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
testitemqlstudop
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### Re: 17 in 17: Efficient 17-bit synthesis project

Yes.

Extrementhusiast
Posts: 1859
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: 17 in 17: Efficient 17-bit synthesis project

testitemqlstudop wrote:Yes.

An insufficient reduction to #11, but one that could lead to further reductions:

Code: Select all

x = 131, y = 28, rule = B3/S23
119bobo$104bo15b2o$105bo14bo$81bo21b3o$79b2o29bobo11bo$80b2o29b2o6bo4b obo$111bo5bobo4b2o$118b2o$75bobo$75b2o$76bo$106b3o16bobo$7bo65b3o32bo
4b2ob2o7b2o$2bo5b2o53bo9bo33bo5bob2o9bo$obo4b2o48bo4bobo9bo43bo$b2o53b obo3bobo49b2ob2o9bo$4b2o40bo9bobo4bo50bo13bobo$5b2o40bo9bo58b2obo8b2o$
2A$25.2D6.A.A$38.3A$38.A$39.A$10.A$10.2A$9.A.A25.2A$5.2A22.A6.2A$4.A. A21.2A8.A$6.A21.A.A$12.3A$14.A$13.A3$11.2A$10.A.A$12.A2$.2A$A.A$2.A!  Tanner Jacobi Coldlander, a novel, available in paperback and as an ebook. Extrementhusiast Posts: 1859 Joined: June 16th, 2009, 11:24 pm Location: USA ### Re: 17 in 17: Efficient 17-bit synthesis project Another insufficient improvement, this time to #164: Code: Select all x = 33, y = 33, rule = B3/S23 22bobo$23b2o$23bo3$26bo$17bo6b2o$18bo6b2o$16b3o$24bo$25bo$23b3o4$30bo$
8bo21bobo$6bobo10b2obo7b2o$7b2o8b3ob2o$16bo$17bo$18bo$o16b2o$b2o8bo$2o
4bo2bobo15b3o$6b2o2b2o9bo5bo$5bobo13b2o5bo$20bobo3$15b3o$17bo$16bo!

EDIT: Recovered a misplaced better insufficient improvement to #11:

Code: Select all

x = 192, y = 29, rule = B3/S23
114bo$114bobo$114b2o2$113bo$111bobo30b2o$112b2o8bo22b2o2bo3bo$68bo54b
2o19bo3bobobobo$67bo54b2o2b2o20bobobobo$49bobo15b3o56bobo20bo3bo28bo$4bo45b2o74bo53bobo$4bobo43bo69b3o58b2o$o3b2o108b2o4bo29b2ob2o29b2ob2o$
b2o44b2o64bo2bo4bo28bo3bo25b2o2bo3bo$2o44bobo11b3o51b2o35b2o26bobo3b2o$46bo13bo54bobo34bobo26bo4bobo$45b2o14bo52bo2b3o31bo2b3o28bo2b3o$114b
2o4bo30b2o4bo27b2o4bo$119b2o35b2o32b2o3$47b3o$38b3o8bo$40bo7bo6b2o$39b o15bobo$55bo$51b3o$53bo$52bo!  Last edited by Extrementhusiast on August 30th, 2019, 5:43 pm, edited 2 times in total. I Like My Heisenburps! (and others) Kazyan Posts: 1030 Joined: February 6th, 2014, 11:02 pm ### Re: 17 in 17: Efficient 17-bit synthesis project Idea for #266 and #267. On the left, the red cells should appear in generation 15, and a 4G inserter should be found for the double dot spark that doesn't involve the yellow glider. With everything in place, the snake inserter on the right would have room to appear. Code: Select all x = 49, y = 26, rule = LifeHistory 5.A$6.A$4.3A$12.A$11.A$11.3A3$5.A.A40.A$6.2A34.A3.2A$6.A35.A.A2.2A$
42.2A$27.3D11.2D$27.3D11.D2.A$4.2D21.3D12.D2A$3.D.D18.9D8.2DA.A$.2A2. D18.9D$4A4.4D9.E2.9D$2A.2A2.D3.D7.E.E5.3D14.2A$2.2A7.D8.2E5.3D14.A.A$9.2D16.3D14.A2$19.A.A$15.2A2.2A$15.A.A2.A$15.A! Bonus: I stared into the ancient eyes of JLS, and this is some of what we saw between the space dust: Code: Select all x = 81, y = 152, rule = LifeHistory 12.A.A$13.A.A$16.A$12.A3.A$13.A$14.2A5$12.2A9.2A$11.A2.A9.2A2.A$15.A 7.A4.2A$11.A3.A12.3A$12.A14.5A$13.2A15.A$30.A$29.A$32.2A$31.3A$3.3A9. 3A.A11.2A$5.A2.2A7.A3.A17.2A$4.A2.A2.A5.A3.3A15.A2.A$11.A9.3A18.A$7.A 3.A9.4A13.A3.A$8.A12.2A16.A$9.2A29.2A$23.2A$11.A$25.A12$23.2A7.2A7.2A$23.2A8.A8.A$21.2A.2A4.A2.2A4.A2.2A$21.A2.2A4.2A.2A4.2A.2A2$22.2A8.A 8.A$24.A6.A.A6.A.A$22.2A9.A8.A4$4.A$.A2.A$3A$3.2A$3.A$3.A$2.A2$33.A2$
22.A7.3A41.A$20.2A.A7.3A39.2A$20.3A.A5.A2.2A38.A.A$21.A.2A6.A.A32.3A 9.3A$22.2A8.2A34.A9.A$22.2A43.A11.A2$62.2A$63.2A$62.A3$2.A$.A4.A$.A3. A$2.3A$31.3A2$3.3A25.3A2$3.3A22.2A2$30.3A$29.A2.A$30.A.A$31.A$33.A3$72.2A$72.A.A$63.3A6.A$65.A$64.A3$64.2A$65.2A$64.A10.2A$75.A.A$75.A3$37.2A$36.A.2A$36.A2.A$37.2A$24.3A2$24.3A4$23.4A$22.A3.A$26.A13.3A$24.
2A13.2A.2A$27.A12.3A$41.A3$19.2A$17.2A.2A$17.4A$15.3A.A$15.2A2$32.2A$34.A$30.A3.A$31.4A13$21.2A2.2A$21.A.A$20.A2.A$21.2A2.2A$25.A$24.A$24.
A!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

chris_c
Posts: 966
Joined: June 28th, 2014, 7:15 am

### Re: 17 in 17: Efficient 17-bit synthesis project

Extrementhusiast wrote:Another insufficient improvement, this time to #164:

Code: Select all

x = 33, y = 33, rule = B3/S23
22bobo$23b2o$23bo3$26bo$17bo6b2o$18bo6b2o$16b3o$24bo$25bo$23b3o4$30bo$8bo21bobo$6bobo10b2obo7b2o$7b2o8b3ob2o$16bo$17bo$18bo$o16b2o$b2o8bo$2o 4bo2bobo15b3o$6b2o2b2o9bo5bo$5bobo13b2o5bo$20bobo3$15b3o$17bo$16bo!  I found a couple of ways of doing the sides in 3G (see gen 30) but they don't fit with the 4G in the bottom right. Are there alternatives for the bottom right in 5G maybe? Code: Select all x = 63, y = 38, rule = B3/S23 46bo$44bobo$45b2o3$2bobo$3b2o55bo$3bo43bo12bobo$45bobo12b2o$46b2o7$45b 2obo$9bo33b3ob2o$7b2o33bo$8b2o22bobo8bo$2bo30b2o9bo$2o31bo9b2o$b2o3$2b
2o7bo$b2o7b2o$3bo6bobo22b2o$34bobo$36bo6$33b2o$34b2o$33bo!  Extrementhusiast Posts: 1859 Joined: June 16th, 2009, 11:24 pm Location: USA ### Re: 17 in 17: Efficient 17-bit synthesis project #166 in sixteen gliders: Code: Select all x = 154, y = 60, rule = B3/S23 141bo$142bo$140b3o$102bo$100bobo10bo29b2o$101b2o9bo30b2o$112b3o$101bo$101b2o$100bobo$60bo$59bo8bo$59b3o4b2o$56bo10b2o$57b2o$56b2o$90bobo$91b
2o$59b2o30bo15bo$58bobo45bobo40bo$60bo5b2o39b2o2b2o34b3o2b2o$66bo44bo
34bo5bo$67bo44bo34bo5bo$16bo44b2o3b2o38b2o3b2o35bo3b2o$14b2o45bobobo 40bobobo38bobo$15b2o8bo38b2o43b2o39b2o$23b2o$24b2o$16bo10b3o$16b2o9bo$15bobo10bo$94b2o$93bobo$95bo8$3o$2bo$bo14$6b3o$8bo$7bo!

I Like My Heisenburps! (and others)

Kazyan
Posts: 1030
Joined: February 6th, 2014, 11:02 pm

### Re: 17 in 17: Efficient 17-bit synthesis project

#210 in 16G:

Code: Select all

x = 94, y = 35, rule = B3/S23
87bo$o84b2o$b2o83b2o$2o$81bo$82b2o$81b2o2$89bo$43bo45bobo$20b2o20bo46b 2o$20bobo19b3o31b2o$21bo54bobo$79bo$71bo5b2o$69bobo4bo$18b3o49b2o4bob 3o$20bo56bo2bo7bo$19bo3b2o53b2o6b2o$22b2o43b3o17b2o$24bo7bobo34bo$32b
2o34bo$33bo57b2o$91bobo$32b2o57bo$33b2o$32bo6$80bo$80b2o$79bobo!
EDIT: Insufficient improvement to #34 by improving the intermediate. The pond inserter could probably be done in 4G, which would solve this.

Code: Select all

x = 84, y = 28, rule = B3/S23
80bo$6bo60bobo3bo5bo$bo5bo15bobo37bo3b2o3bo6b3o$2bo2b3o15b2o36bobo4bo 3b3o$3o21bo37b2o2$18bo$18bobo$18b2o2$2b2o10bo57b2o$2bobo9bobo56bo7b2o$
2bo11b2o56bo8bobo$72b2o7bo$70b2o2bo$29b2o39bo2bobo$28b2o42b2o2bo$23b2o 5bo44b2o$22b2o$24bo$10bo17b3o$10b2o3b2o11bo$9bobo4b2o11bo$15bo2$5bo$5b 2o$4bobo!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

chris_c
Posts: 966
Joined: June 28th, 2014, 7:15 am

### Re: 17 in 17: Efficient 17-bit synthesis project

Kazyan wrote:Insufficient improvement to #34 by improving the intermediate. The pond inserter could probably be done in 4G, which would solve this.

Code: Select all

x = 84, y = 28, rule = B3/S23
80bo$6bo60bobo3bo5bo$bo5bo15bobo37bo3b2o3bo6b3o$2bo2b3o15b2o36bobo4bo 3b3o$3o21bo37b2o2$18bo$18bobo$18b2o2$2b2o10bo57b2o$2bobo9bobo56bo7b2o$
2bo11b2o56bo8bobo$72b2o7bo$70b2o2bo$29b2o39bo2bobo$28b2o42b2o2bo$23b2o 5bo44b2o$22b2o$24bo$10bo17b3o$10b2o3b2o11bo$9bobo4b2o11bo$15bo2$5bo$5b 2o$4bobo!

Replaced the pond inserter with a 3G reaction and a single cleanup glider:

Code: Select all

x = 38, y = 27, rule = B3/S23
6bo$bo5bo$2bo2b3o$3o25bo$27bo$18bo8b3o$18bobo$18b2o2$2b2o10bo$2bobo9bo bo11bo$2bo11b2o12bobo$23b3o2b2o$23bo$24bo5$10bo$10b2o$9bobo3$5bo29b2o$
5b2o28bobo$4bobo28bo!  Kazyan Posts: 1030 Joined: February 6th, 2014, 11:02 pm ### Re: 17 in 17: Efficient 17-bit synthesis project Idea for #72; insert red cells at generation 4: Code: Select all x = 15, y = 17, rule = LifeHistory 8.A$7.A$7.3A$3.A$4.2A$3.2A2$10.A.A$5.2A4.2A$4.A.A4.A$4.A8.A$2.D2.4A3. A$D8.A2.3A$2.2D3.2A$7.A$9.A$8.2A!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

Extrementhusiast
Posts: 1859
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: 17 in 17: Efficient 17-bit synthesis project

#164 in sixteen gliders, due to an unlikely merger of steps:

Code: Select all

x = 129, y = 32, rule = B3/S23
83bo$81b2o$82b2o3$93bo22bo$91b2o21bobo$4bo87b2o21b2o$4bobo120bo$4b2o 105bobo11b2o$2bo109b2o7bobo2b2o$obo27bo29bo51bo3b2o4b2o$b2o27bo29bo55b
obo3bo$30bo9bo19bo57bo$38bobo76bo6bo$31bo7b2o20bo54bo3b2obobo$4b3o23bo
bo27bobo4b3o45bo5bob2o$4bo25b2o5b2o21b2o53b2o3bo6b2o$5bo31bobo24b2o12b
o38bobo6b2o$33b2o2bo25bo2bo10bo39b2o9bo$34b2o28b2o11b3o$33bo4$59bobo$60b2o$60bo2$60b2o$59bobo$61bo!  I Like My Heisenburps! (and others) Goldtiger997 Posts: 633 Joined: June 21st, 2016, 8:00 am ### Re: 17 in 17: Efficient 17-bit synthesis project Kazyan wrote:Idea for #72; insert red cells at generation 4: Code: Select all x = 15, y = 17, rule = LifeHistory 8.A$7.A$7.3A$3.A$4.2A$3.2A2$10.A.A$5.2A4.2A$4.A.A4.A$4.A8.A$2.D2.4A3. A$D8.A2.3A$2.2D3.2A$7.A$9.A$8.2A!
I made the base still life in 6G so if anyone can make Kazyan's blinker-predecessor in 6 gliders or less that will solve #72:

Code: Select all

x = 33, y = 26, rule = B3/S23
10bo$8bobo$9b2o2$22bo$21b2o$21bobo2$2o$b2o$o2$21b3o$21bo$7b3o12bo$9bo$8bo7$30b3o$30bo$31bo!
Extrementhusiast wrote:#164 in sixteen gliders, due to an unlikely merger of steps:...
Nicely done!

chris_c
Posts: 966
Joined: June 28th, 2014, 7:15 am

### Re: 17 in 17: Efficient 17-bit synthesis project

Goldtiger997 wrote: I made the base still life in 6G so if anyone can make Kazyan's blinker-predecessor in 6 gliders or less that will solve #72:
Made the spark with 5G in total. There might be a way to do cleanup in one less glider.

Code: Select all

x = 44, y = 54, rule = B3/S23
bo$2bo$3o8$2bo$obo$b2o2$22bo$21bo$15bobo3b3o$16b2o$16bo2$38bobo$24bo
o3$14b3o$14bo$15bo!  Kazyan Posts: 1030 Joined: February 6th, 2014, 11:02 pm ### Re: 17 in 17: Efficient 17-bit synthesis project The current 17G synthesis for #135 is below, but with a cleanup glider removed in the intermediate step. This would be a 16G solution, but there's a single random blinker. Neither of the 3G versions of the spark generated by the four marked gliders fit here, but I'm certain that a 4G version could both form the spark and delete the extraneous blinker. There's plenty of room to wave around the glider in white, but there does not appear to be a solution just by doing that, from my manual testing. A different mechanism for the spark may be needed. Code: Select all x = 163, y = 36, rule = LifeHistory 88.A$88.A.A$88.2A$77.A$77.A.A$77.2A3$2.A75.2A$A.A74.2A$.2A76.A$121.C$84.A.A35.2C$84.2A35.2C$85.A47.3A$71.2A$71.A$72.3A70.2A$74.A70.A2.A$
81.A65.2A$19.A60.A.A65.A.2A.A$3.2A14.A.A58.A2.A55.E7.A2.A.2A$4.2A8.3A 2.2A60.2A55.2E8.2A$3.A10.A119.E3.E.E$15.A59.3A56.2E$58.2A73.E.E$59.2A 2.2A$58.A5.2A60.3E$63.A64.E$127.E3$161.2A$143.A16.2A$143.2A17.A$142.A
.A!
EDIT: This could remove another glider from #11, which would solve it, if different 3G inserter exists for the right spark. As-is, the gliders would collide.

Code: Select all

x = 21, y = 15, rule = B3/S23
10bo$8b2o$9b2o3bo$15b2o$14b2o2b2o$2o16bobo$b2o15bo$o11b3o$6b2o4bo$5bo 2bo4bo$6b2o$7bobo$6bo2b3o$6b2o4bo$11b2o!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

Extrementhusiast
Posts: 1859
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: 17 in 17: Efficient 17-bit synthesis project

Kazyan wrote:EDIT: This could remove another glider from #11, which would solve it, if different 3G inserter exists for the right spark. As-is, the gliders would collide.

Code: Select all

RLE
Here's the longest-lasting example:

Code: Select all

x = 43, y = 30, rule = B3/S23
$24bo$24bo16$2o$b2o$o!  Goldtiger997 Posts: 633 Joined: June 21st, 2016, 8:00 am ### Re: 17 in 17: Efficient 17-bit synthesis project chris_c wrote:Improving the predecessor of #135 using some different but equivalent junk on the left: Code: Select all x = 42, y = 47, rule = B3/S23 39bobo$39b2o$40bo$28bobo$28b2o$29bo6$36bo$35bo$7bo27b3o$8b2o19b2o$7b2o 20bobo$29bo3$11bo$12bo$10b3o$29bo$28bobo$8b3o17bo2bo$10bo18b2o$9bo14bo
$24bo$24bo16$2o$b2o$o!  Just beat me too it. Here's was my alternate 16G solution: Code: Select all x = 91, y = 36, rule = B3/S23 15bo$13bobo17bo$14b2o11bo4bo$25b2o5b3o$26b2o2$23bo$21b2o$4bobo15b2o$5b 2o$5bo43bo$27bobo20b2o$27b2o20b2o$28bo3$73b2o$73bo2bo$24bo50b2o$23bobo 50bob2obo$23bo2bo40bo7bo2bob2o$24b2o40b2o8b2o$62bo3bobo$18b3o41b2o$61b
obo2$54b3o$6bo49bo$6b2o47bo$5bobo2$89b2o$71bo16b2o$bo69b2o17bo$b2o67bo
bo$obo! Now we're down to only 6 17-bitters left! 4 of those are pretty similar. Freywa Posts: 718 Joined: June 23rd, 2011, 3:20 am Location: Singapore Contact: ### Re: 17 in 17: Efficient 17-bit synthesis project Code: Select all #CLL state-numbering golly x = 603, y = 213, rule = B3/S23 218bo198b3o$217b2o197bo3bo$218bo201bo$218bo200bo$218bo199bo$218bo
198bo$217b3o196b5o4$17b3o17bo19b3o17b3o19bo16b5o16b3o16b5o16b3o17b
3o17b3o17bo19b3o17b3o19bo16b5o16b3o16b5o16b3o17b3o17b3o17bo19b3o
17b3o19bo16b5o16b3o16b5o16b3o17b3o$16bo3bo15b2o18bo3bo15bo3bo17b2o 16bo19bo3bo19bo15bo3bo15bo3bo15bo3bo15b2o18bo3bo15bo3bo17b2o16bo 19bo3bo19bo15bo3bo15bo3bo15bo3bo15b2o18bo3bo15bo3bo17b2o16bo19bo3b o19bo15bo3bo15bo3bo$16bo3bo16bo22bo19bo16bobo16bo19bo22bo16bo3bo
15bo3bo15bo3bo16bo22bo19bo16bobo16bo19bo22bo16bo3bo15bo3bo15bo3bo
16bo22bo19bo16bobo16bo19bo22bo16bo3bo15bo3bo$16bobobo16bo21bo18b2o 16bo2bo17b3o16b4o19bo17b3o17b4o15bobobo16bo21bo18b2o16bo2bo17b3o 16b4o19bo17b3o17b4o15bobobo16bo21bo18b2o16bo2bo17b3o16b4o19bo17b3o 17b4o$16bo3bo16bo20bo21bo15b5o19bo15bo3bo17bo17bo3bo19bo15bo3bo16b
o20bo21bo15b5o19bo15bo3bo17bo17bo3bo19bo15bo3bo16bo20bo21bo15b5o
19bo15bo3bo17bo17bo3bo19bo$16bo3bo16bo19bo18bo3bo18bo16bo3bo15bo3b o17bo17bo3bo15bo3bo15bo3bo16bo19bo18bo3bo18bo16bo3bo15bo3bo17bo17b o3bo15bo3bo15bo3bo16bo19bo18bo3bo18bo16bo3bo15bo3bo17bo17bo3bo15bo 3bo$17b3o16b3o17b5o16b3o19bo17b3o17b3o18bo18b3o17b3o17b3o16b3o17b
5o16b3o19bo17b3o17b3o18bo18b3o17b3o17b3o16b3o17b5o16b3o19bo17b3o
17b3o18bo18b3o17b3o10$b3o$o3bo$o3bo$obobo$o3bo$o3bo$b3o14$bo$2o$bo
$bo$bo$bo$3o13$235b2o3b2o$b3o231bo2bo2bo$o3bo232b2obo$4bo233bob2o$3bo233bo$2bo233bo$bo234b2o$5o13$235b2o363bo$b3o231bo2bob2o357bobo$o3bo232b2obo358bo2bo$4bo233bo2bo355b2obobo$2b2o233bo2b2o355bo2b2o$
4bo231bo361bo$o3bo231b2o357b3o$b3o591bo13$136b2o$3bo132bo$2b2o134b o$bobo133b2o$o2bo132bo$5o130bo2b3o$3bo132b2obo$3bo137bo$140b2o13$
5o$o$o$b3o$4bo$o3bo$b3o13$535b2o3b2o$b3o531bo2bo2bo$o3bo532b2obo$o
537bob2o$4o531b3o$o3bo530bo$o3bo$b3o13$535b2o$5o530bo2bob2o$4bo 532b2obo$3bo534bo2bo$3bo531b3o2b2o$2bo532bo$2bo$2bo14$b3o$o3bo$o3b o$b3o$o3bo$o3bo$b3o14$b3o$o3bo$o3bo$b4o$4bo$o3bo$b3o!
Right, let's push.
Princess of Science, Parcly Taxel

Goldtiger997
Posts: 633
Joined: June 21st, 2016, 8:00 am

### Re: 17 in 17: Efficient 17-bit synthesis project

#266 in 16 gliders:

Code: Select all

x = 251, y = 57, rule = B3/S23
162bo$163bo$161b3o79bobo$o64bobo98bo77b2o$b2o63b2o97bo78bo4bo$2o64bo 98b3o80bo$61bo186b3o$62bo182bo$60b3o98b2o6b3o72bobo$161bo2bo4bo72bo2bo$162b3o5bo71b3o$247b3o$8bo74b2o77b3o77b3o2bo$6bobo73bo2bo75bobo77bobo 4bo$7b2o74b2o76bo3bo75bo3bo$160b2o2b2o74b2o2b2o$10bo$9bo69b3o$9b3o67bo
$72b3o5bo10bo$74bo16bo$73bo17bo7$93bo$92b2o$92bobo11$64b3o$66bo$65bo 11$122bo$121b2o$121bobo!
I suspect #112 can be solved in a similar way.

Hdjensofjfnen
Posts: 1624
Joined: March 15th, 2016, 6:41 pm
Location: r cis θ

### Re: 17 in 17: Efficient 17-bit synthesis project

The final 5.

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x = 89, y = 25, rule = B3/S23
b2o17b2o3b2o13b2o18b2o23bo$bo18bo2bo2bo13bo2bob2o13bo2bob2o17bobo$3bo
18b2obo16b2obo16b2obo18bo2bo$2b2o19bob2o16bo2bo16bo2bo15b2obobo$bo20bo
19bo2b2o13b3o2b2o15bo2b2o$o2b3o15bo19bo18bo22bo$b2obo16b2o18b2o37b3o$6bo73bo$5b2o12$3obobo13bobob3o13bobob3o11b3ob3ob3o9b3ob3ob3o$o3bobo13b
obo3bo13bobo3bo13bobo5bo11bobobo3bo$3ob3o13bobob3o13bobob3o11b3ob3o3bo 9b3ob3ob3o$obo3bo13bobobo15bobo3bo11bo3bobo3bo9bo5bo3bo$3o3bo13bobob3o 13bobob3o11b3ob3o3bo9b3ob3ob3o!  I'll guess that #293 will be the last one standing. EDIT: Comforting that Kazyan and I use the same exact number font. Code: Select all x = 5, y = 9, rule = B3-jqr/S01c2-in3 3bo$4bo$o2bo$2o2$2o$o2bo$4bo$3bo!

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x = 7, y = 5, rule = B3/S2-i3-y4i
4b3o$6bo$o3b3o$2o$bo!


Freywa
Posts: 718
Joined: June 23rd, 2011, 3:20 am
Location: Singapore
Contact:

### Re: 17 in 17: Efficient 17-bit synthesis project

Goldtiger997 wrote:#266 in 16 gliders:
I was expecting a method that added the requisite ten bits onto the snake, so that two still lifes could be solved in one go, for both pairs in the last six that have this feature.
Hdjensofjfnen wrote:The final 5.
I had pushed an RLE of the last six stills only a few posts above. Why would you want to be relentlessly up-to-date?
Princess of Science, Parcly Taxel

A for awesome
Posts: 2185
Joined: September 13th, 2014, 5:36 pm
Location: Pembina University, Home of the Gliders
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### Re: 17 in 17: Efficient 17-bit synthesis project

A possible longshot approach for #267:

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x = 26, y = 11, rule = B3/S23
20bo$20b3o$19b3o$17b3obo2b2o$4bo16b2o$3bobo15bobo$3bo2bo14bo2bo$b2o2b 2o3bobobo2bob2o2b2o$o17bo$bobo15bobo$2b2o!
Since the precursor SL takes 7G, all for separate transformations would have to be done in 9G (clearly a tall order -- 11G seems like a more likely lower bound, 1/3/4/3 clockwise from bottom, with 13G probably more realistic). I wouldn't be surprised if the precursor SL could be reduced to 6G or even 5G with luck, though -- which would open an outside chance of coming in under 17G for the SL.
praosylen#5847 (Discord)

x₁=ηx
V*_η=c²√(Λη)
K=(Λu²)/2
Pₐ=1−1/(∫^∞_t₀(p(t)ˡ⁽ᵗ⁾)dt)

$$x_1=\eta x$$
$$V^*_\eta=c^2\sqrt{\Lambda\eta}$$
$$K=\frac{\Lambda u^2}2$$
$$P_a=1-\frac1{\int^\infty_{t_0}p(t)^{l(t)}dt}$$

Kazyan
Posts: 1030
Joined: February 6th, 2014, 11:02 pm

### Re: 17 in 17: Efficient 17-bit synthesis project

I was also expecting a solution that could solve both Tweedledee and Tweedledum at the same time by flipping a snake insertion, but I was never able to get anywhere close by trying methods like that. So Goldtiger pulls through again. Sure enough, #113 is probably doable, since a base can be made in 11G and there's a 4G budget for the spark in a relatively simple activation step:

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x = 72, y = 28, rule = B3/S23
23bo$22bo$22b3o4$29bo$28bo40b2o$28b3o39bo$12b2ob2o7bo44bo$12b2ob2o7bob o38b2obo$6bo17b2o40bob2o$bo5bo56bobobo2bo$2bo2b3o56b2o4b2o$3o9bo$13bo
47b2o$11b3o46bobo3b2o2bo$3b3o56bo3bobobo$5bo60bo4bo$4bo3$31b3o$31bo$32bo$14b2o$13bobo$15bo!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

chris_c
Posts: 966
Joined: June 28th, 2014, 7:15 am

### Re: 17 in 17: Efficient 17-bit synthesis project

Kazyan wrote:Sure enough, #113 is probably doable, since a base can be made in 11G and there's a 4G budget for the spark in a relatively simple activation step:

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x = 72, y = 28, rule = B3/S23
23bo$22bo$22b3o4$29bo$28bo40b2o$28b3o39bo$12b2ob2o7bo44bo$12b2ob2o7bob o38b2obo$6bo17b2o40bob2o$bo5bo56bobobo2bo$2bo2b3o56b2o4b2o$3o9bo$13bo
47b2o$11b3o46bobo3b2o2bo$3b3o56bo3bobobo$5bo60bo4bo$4bo3$31b3o$31bo$32bo$14b2o$13bobo$15bo!
Yeah that's doable. 16G in total:

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x = 87, y = 33, rule = B3/S23
23bo$22bo$22b3o4$29bo$28bo48b2o$28b3o47bo$12b2ob2o7bo52bo$12b2ob2o7bob o46b2obo$6bo17b2o48bob2o$bo5bo64bobobo2bo$2bo2b3o64b2o4b2o$3o9bo$13bo$11b3o$3b3o$5bo$4bo68b3o$75bo$63b3o8bo5b2o$31b3o31bo13b2o$31bo32bo16bo
3b2o$32bo51b2o$14b2o70bo$13bobo$15bo3$66bo$66b2o\$65bobo!