## 15 in 15: Efficient 15-bit Synthesis Project (DONE!)

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

### Re: 15 in 15: Efficient 15-bit Synthesis Project

15.919 in 13G:
`x = 125, y = 46, rule = B3/S239\$90bo\$91b2o\$90b2o\$97bo\$95b2o\$96b2o3bo\$24bo75bo\$23bo67bo8b3o\$23b3o66b2o\$91b2o\$88b2o12b2o\$87bobo12bobo\$36b2o18b2o18b2o11bo6b2o4bo14b2o\$9bo27bo19bo19bo19bo20bo\$10bo25bo19bo19bo19bo19bo\$8b3o25b2o18b2o18b2o18b2o18b2o\$32bob2o2bo13bob2o2bo13bob2o2bo13bob2o2bo13bob2o2bo\$32b2obobo14b2obobo14b2obobo14b2obobo14b2obobo\$36bo19bo19bo19bo19bo\$13bo6bo\$11bo3bo3b2o\$16bo2bobo\$11bo4bo18bo19bo\$12b5o17bobo17bobo\$34bobo17bobo\$35bo19bo\$39b2o18b2o\$39b2o18b2o\$51b3o\$37bo15bo3bo\$36bobo13bo3bobo\$36bobo17bobo\$37bo19bo!`

15.731 26G->15G:
`x = 180, y = 52, rule = B3/S2314\$27bo\$27bobo\$27b2o3\$15bobo\$16b2o21b2o18b2o\$10bo5bo21bobo17bobo\$11b2o26bo19bo\$10b2o44b2o95bo\$29bobo23bobo94bo9b2o\$29b2o11b2o13bo4b2o18b2o18b2o18b2o18b2o8b3o7bo\$18b3o9bo11bo3b2o14bo3b2o14bo3b2o14bo3b2o14bo3b2o14bo3b2o16bo\$18bo5bo19bo2bo16bo2bo16bo2bo16bo2bo16bo2bo16bo2bo2b2o11b4o\$19bo3bo19b4o16b4o16b4o16b4o16b4o16b4o2b2o16bo\$23b3o125bo13b2o\$45b2o18b2o18b2o10bo7b2o18b2o18b2o18bo\$45b2o18b2o18b2o11bo6b2o18bo19bo20bo\$23b3o70b3o27bo19bo18b2o\$23bo84bo16b2o18b2o\$24bo83bobo\$108b2o2\$105bobo\$32bo73b2o\$31b2o73bo\$31bobo\$102b2o\$101bobo\$103bo!`

Bob Shemyakin
BobShemyakin

Posts: 211
Joined: June 15th, 2014, 6:24 am

### Re: 15 in 15: Efficient 15-bit Synthesis Project

BobShemyakin wrote:15.919 in 13G:
`RLE`

Saves a glider in the first step:
`x = 44, y = 29, rule = B3/S2321bo\$19b2o\$20b2o5\$o\$b2o36b2o\$2o38bo\$39bo\$39b2o\$35bob2o2bo\$18bo16b2obobo\$13bobo2bobo18bo\$14b2o2b2o\$14bo\$17b2o\$16bobo19bo\$18bo18bobo\$37bobo\$38bo\$42b2o\$42b2o2\$40bo\$39bobo\$39bobo\$40bo!`
I Like My Heisenburps! (and others)

Extrementhusiast

Posts: 1728
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: 15 in 15: Efficient 15-bit Synthesis Project

BobShemyakin wrote:15.731 26G->15G:
`x = 180, y = 52, rule = B3/S2314\$27bo\$27bobo\$27b2o3\$15bobo\$16b2o21b2o18b2o\$10bo5bo21bobo17bobo\$11b2o26bo19bo\$10b2o44b2o95bo\$29bobo23bobo94bo9b2o\$29b2o11b2o13bo4b2o18b2o18b2o18b2o18b2o8b3o7bo\$18b3o9bo11bo3b2o14bo3b2o14bo3b2o14bo3b2o14bo3b2o14bo3b2o16bo\$18bo5bo19bo2bo16bo2bo16bo2bo16bo2bo16bo2bo16bo2bo2b2o11b4o\$19bo3bo19b4o16b4o16b4o16b4o16b4o16b4o2b2o16bo\$23b3o125bo13b2o\$45b2o18b2o18b2o10bo7b2o18b2o18b2o18bo\$45b2o18b2o18b2o11bo6b2o18bo19bo20bo\$23b3o70b3o27bo19bo18b2o\$23bo84bo16b2o18b2o\$24bo83bobo\$108b2o2\$105bobo\$32bo73b2o\$31b2o73bo\$31bobo\$102b2o\$101bobo\$103bo!`

Bob Shemyakin

I suspect the base still life can be made in 8G to reduce the whole thing to 14, based on this:

`x = 20, y = 21, rule = B3/S2318bo\$17bobo\$17bobo\$11b3o4bo6\$12b3o\$11bo2bo\$11bobo\$11b2o6\$3o\$2bo\$bo!`
Tanner Jacobi

Kazyan

Posts: 774
Joined: February 6th, 2014, 11:02 pm

### Re: 15 in 15: Efficient 15-bit Synthesis Project

Bobshemyaking wrote:Nice! Now the greatest cost of the 15.868 (28G).

BlinkerSpawn's 10-glider 15.869 from 2016-10-25 drops this to 16:
`x = 184, y = 51, rule = B3/S2333bo\$31bobo\$32boo12\$76b3o22bo4b3o\$99bobo\$51bo22bo25boobbo\$49bobo22bo29bo\$50boo22bo29bo\$44bo\$45bo6bo\$43b3o5bo\$51b3o4\$52bobo\$53boo\$53bo4\$88boo28boo18boo18boo18boo\$87bobboboo23bobboboo13bobboboo13bobboboo13bobboboo\$obo85boo3bo24boo3bo14boo3bo14boo3bo14boo3bo\$boo19bo29bo37boo28boo18boo18boo18boo\$bo19bobo27bobo36bo29bo19bo19bo19bo\$22boo28boo37bo29bo19bo19bo20bo\$b3o57boo18boo7boo19boo7boo18boo11bo6boo4bo14boo\$bo58boo19boo28boo38bobo12bobo\$bbo59bo89boo12boo\$109boo44boo\$108bobo45boo\$110bo44bo8b3o\$164bo\$160boo3bo\$159boo\$161bo\$154boo\$155boo\$154bo!`
mniemiec

Posts: 957
Joined: June 1st, 2013, 12:00 am

### Re: 15 in 15: Efficient 15-bit Synthesis Project

Kazyan wrote:I suspect the base still life can be made in 8G to reduce the whole thing to 14, based on this...

Indeed, it can. 15.731 in 14:
`x = 280, y = 26, rule = B3/S2380bobo\$80b2o\$81bo5\$69bo118bo\$70b2o114bobo\$69b2o116b2o\$63b2o\$62bobo\$64bo2b3o128bo\$67bo23b2o28b2o28b2o28b2o14bo13b2o28b2o28b2o\$68bo22bo2bo26bo2bo26bo2bo26bo2bo12b3o11bo2bo26bo2bo26bo2bo\$93b2o28b2o28b2o28b2o28b2o28b2o28b2o\$94bob2o26bob2o26bob2o26bob2o5bo20bob2obo24bob2obo24bob2obo\$7bo84bobob2o20bo3bobob2o24bobob2o24bobob2o6b2o16bobobob2o22bobobob2o24bobob2o\$bobob2o30bo29bo24b2o22bobo3b2o28b2o28b2o9b2o17b2o28b2o31bo\$2b2o2b2o23bo5bo23bo5bo49b2o70b3o\$2bo27bobo4bo22bobo4bo22bo29bo70bo52bo\$30bobo27bobo26bobo27bobo68bo52b2o\$2o29bo29bo28b2o28b2o121bobo\$obo237b2o\$o238bobo\$241bo!`
-Matthias Merzenich
Sokwe
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### Re: 15 in 15: Efficient 15-bit Synthesis Project

A very messy synthesis of 15.475 in 14 gliders:

`x = 160, y = 119, rule = B3/S23obo\$b2o\$bo5\$117bo\$116bo\$116b3o4\$157bobo\$157b2o\$158bo19\$126bo\$126bobo\$126b2o12\$70bo\$71bo\$69b3ob2o\$73bobo\$73bo3\$70b2o\$69b2o17bo\$71bo16bobo\$88b2o2b2o\$64bo27bobo\$62bobo27bo\$63b2o\$60b2o\$59bobo14bo\$61bo13b2o\$75bobo2\$73b2o\$72bobo\$74bo47\$17b2o\$16bobo\$18bo!`

Cleanup is 5 gliders so it can probably easily be improved through that.
Things to work on:
• Work on the snowflakes orthogonoid

Goldtiger997

Posts: 468
Joined: June 21st, 2016, 8:00 am
Location: 11.329903°N 142.199305°E

### Re: 15 in 15: Efficient 15-bit Synthesis Project

15.1033 in likely 12:
`x = 51, y = 29, rule = B3/S238bo\$8bo32bobo\$8bo26bo4b2obo\$32b3o5b2obo\$o35bo3bo2bob3o\$o35bo3b2obo3bo\$o35bo3b2o\$41bobo2b2o2bo\$39bobobobo2bobo\$3bo37bobo3bo\$2bobo33bo4b2o4bo\$2bobo4bo28b2obob2ob3o\$3bo5bo30bo2bobo2bo\$8bobo32b2o\$9bo33b2ob2o\$9bo35bo11\$40bo\$40b2o\$39bobo!`

15.1024 in 13:
`x = 72, y = 61, rule = B3/S2310bo\$9bobo\$9bobo2b2o\$10bo3b2o8\$22bo\$22b2o\$22bobo\$23b2o7\$b2o\$o2bo\$b2o26\$28bo\$27b2o\$27bobo3\$41bo\$40b2o27b2o\$40bobo26bobo\$69bo\$55b2o\$55bobo\$55bo!`

15.890:
`x = 75, y = 27, rule = B3/S2313bobo44bo\$13bobo58bo\$14bo43b2o12b2o\$57b4o12b2o\$10b2o3b2o36b3obob2o\$b2o6bobo3bobo34b7o\$o2bo5bo7bo39bobo\$b2o6bo3bo3bo27b2o3b6ob3o3b2o\$10bo5bo27bo2bob2ob2ob3o6b2o\$11bo3bo29b2o3bob2o7b2obo\$12b3o24b2o10b3o7b3o\$38bobo11bo9bo\$40bo15b3o\$56b3o\$57bo10\$50bo\$50b2o\$49bobo!`

15.939:
`x = 19, y = 19, rule = B3/S2313b3o\$8b2o2bo3bo\$7bo2bob2o3bo\$8b2o8bo\$15bo2bo\$18bo\$12b2o3bo\$12bo3bo\$13b3o2\$9b2o\$2o2b2o2bo2bo\$b2ob2o2bo2bo\$2b2o5b2o\$2bo\$bo\$obo\$o2bo\$b2o!`

The junk can be replaced by anything else that can create the 2-gen bit spark.
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

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Location: Getting a snacker from R-Bee's

### Re: 15 in 15: Efficient 15-bit Synthesis Project (46 SLs remain)

15.478
`x = 27, y = 66, rule = B3/S2313bo\$13bo\$13bo10b3o2\$9b3o3b3o4\$12b3o\$11bo3bo\$11bo2bo3bobo\$18bobo\$18b3o30\$bo\$2bo17bo\$3o17bo\$20bo\$15bo9b2o\$15bo9b2o\$14bobo2\$15bo2bo\$17bo\$17bo2\$12b2o\$12b2o8\$23bo\$23bo\$23bo!`

15.483
`x = 15, y = 11, rule = B3/S232b2o\$o3bo\$bo2bo\$2b3o7bo\$11b3o\$10bo3bo\$10b2ob2o2\$4bo\$4bo\$4bo!`

15.835
`x = 19, y = 13, rule = B3/S233b2o\$3b2o5b2o\$10b2o\$bo\$b2o\$b2o7b2o3b2o\$o8bobo3bobo\$8b2o7b2o\$2b2o5b2o5b2o\$2b2o6bo5bo\$11b5o\$12b3o\$13bo!`

15.848
`x = 20, y = 11, rule = B3/S2312b2o\$11bo2bo\$12b2o\$3bo\$2b2o\$2b2o13b3o\$8bo\$2o5bobo4bo\$2o6b2o3bobo\$13bobo\$14bo!`

15.868
`x = 25, y = 22, rule = B3/S23b2o\$obo\$2o6\$9b2o\$9b2o11b2o\$14b2o5bo2bo\$13bo2bo5b2o\$13bo2bo\$14b2o3\$2b2ob2o\$3bobo12b2o\$4bo13b2o\$8b2o\$8bobo\$8bo!`

yootaa

Posts: 35
Joined: May 26th, 2016, 1:08 am
Location: Japan

### Re: 15 in 15: Efficient 15-bit Synthesis Project (46 SLs remain)

yootaa wrote:15.478
`rle`

15.478 in 9 gliders:

`x = 118, y = 34, rule = B3/S2340bo\$40bobo\$40b2o3\$2bo\$obo\$b2o2\$6bo\$7bo\$5b3o4\$20bo\$20bobo\$20b2o2b3o\$24bo\$25bo2\$18b2o\$17b2o\$19bo33b2o28b2o28b2o\$54bo29bo29bo\$53bo29bo29bo\$52bob3o25bob3o25bob3o\$48b2obo2bo2bo20b2obo2bo2bo23bo2bo2bo\$48b2ob2o3b2o20b2ob2o3b2o23b2o3b2o2\$74b2o\$24bo8b2o38bobo\$24b2o6b2o41bo\$23bobo8bo!`

EDIT: 15.483 in 8 gliders, again from yootaa's suggestion:

`x = 19, y = 31, rule = B3/S237bobo\$8b2o\$8bo11\$bo10bo\$2bo9bobo\$3o9b2o7\$9b3o\$9bo\$10bo6bo\$7bo8b2o\$7bo8bobo\$7bo\$14bo\$14b2o\$13bobo!`

EDIT2: And 15.868 in 14 gliders:

`x = 213, y = 63, rule = B3/S232bo\$obo\$b2o17\$185bo\$186bo\$184b3o2\$61b2o48b2o57bo\$60bobo47bobo58bo3bo13b2o\$26bobo31b2o48b2o57b3o2bobo12b2o\$26b2o147b2o\$27bo\$169b2o\$35bobo122b2o6bo2bo38b2o\$35b2o119b2obo2bo6b2o35b2obo2bo\$36bo32b2o48b2o35bo3b2o44bo3b2o\$42b2o25b2o11b2o35b2o11b2o24b2o48b2o\$41bo2bo29b2o5bo2bo39b2o5bo2bo24bo49bo\$28b3o3b3o5b2o29bo2bo5b2o39bo2bo5b2o23bo49bo\$16b3o9bo5bo38bo2bo46bo2bo30b2o48b2o\$18bo10bo5bo38b2o48b2o\$17bo96b2o\$114bobo\$114bo2\$110b2o\$111b2o\$110bo2\$121b2o\$121bobo\$121bo13\$148b2o\$148bobo\$148bo!`
chris_c

Posts: 868
Joined: June 28th, 2014, 7:15 am

### Re: 15 in 15: Efficient 15-bit Synthesis Project (43 SLs remain)

15.890 in 13G:
`x = 50, y = 46, rule = B3/S2340bo\$20bo17b2o\$21b2o16b2o\$20b2o\$33bobo\$33b2o\$23bo10bo\$21bobo23bo\$22b2o23bobo\$31bo15b2o\$29b2o\$30b2o5\$25bo\$24b2o12bo\$24bobo10b2o\$13b2o22bobo\$12bo2bo6b2o\$13b2o6bobo\$23bo6\$bo\$b2o\$obo13\$11b3o\$13bo\$12bo!`

That was really difficult to fit in.
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

Posts: 1809
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

### Re: 15 in 15: Efficient 15-bit Synthesis Project (43 SLs remain)

Down to 11G with a couple of tweaks:

`x = 49, y = 22, rule = B3/S2322bo\$23b2o\$22b2o\$35bobo8bo\$35b2o9bobo\$bo23bo10bo9b2o\$2bo20bobo\$3o21b2o\$33bo\$31b2o\$32b2o2\$41bo\$13bo26b2o\$11bobo26bobo\$12b2o13bo\$17bo8b2o\$17bobo6bobo\$17b2o\$24b2o\$23bobo\$25bo!`
chris_c

Posts: 868
Joined: June 28th, 2014, 7:15 am

### Re: 15 in 15: Efficient 15-bit Synthesis Project (42 SLs remain)

Can anyone find a cleanup in 5 gliders for this synthesis of 15.476?

`x = 27, y = 26, rule = B3/S2313bo\$14b2o\$13b2o3\$25bo\$12bo11bo\$13bo10b3o\$11b3o3\$20bo\$19bo\$19b3o2\$4bo\$3b2o\$3bobo2\$b2o14bo\$obo14bobo\$2bo3b2o9b2o\$6bobo\$6bo7b3o\$16bo\$15bo!`

There are only three soups for this on catalogue
Last edited by Goldtiger997 on November 8th, 2016, 7:27 pm, edited 1 time in total.
Things to work on:
• Work on the snowflakes orthogonoid

Goldtiger997

Posts: 468
Joined: June 21st, 2016, 8:00 am
Location: 11.329903°N 142.199305°E

### Re: 15 in 15: Efficient 15-bit Synthesis Project (42 SLs remain)

Goldtiger997 wrote:Can anyone find a cleanup in 5 gliders for this synthesis of 15.376?

Yes, found a 5 glider cleanup and saved a glider early on by using a hive instead of a boat. 13G in total:

`x = 287, y = 261, rule = B3/S2330bo\$28bobo\$29b2o56\$47bo\$48b2o\$47b2o19\$114bobo\$115b2o\$115bo14\$149bo\$148bo\$148b3o6\$129bo16bo\$128b2o16bobo\$128bobo15b2o2\$126b2o\$125bobo\$127bo3b2o\$131bobo\$131bo4\$135b3o\$137bo\$136bo8\$118bo\$118b2o\$117bobo66\$23b2o\$22bobo\$24bo45\$284b2o\$284bobo\$284bo16\$2o\$b2o\$o!`
chris_c

Posts: 868
Joined: June 28th, 2014, 7:15 am

### Re: 15 in 15: Efficient 15-bit Synthesis Project (42 SLs remain)

15.562 in 10G:
`x = 49, y = 46, rule = B3/S2347bo\$46bo\$46b3o6\$o\$b2o9bo\$2o11bo\$11b3o9\$22b2o\$22bo\$20bobo\$20b2o2\$10b2o\$11b2o\$10bo\$30b2o\$30bobo\$30bo7\$16bobo\$17b2o3bo\$17bo2b2o\$21b2o3\$17bo\$17b2o\$16bobo!`

Edit: 15.986
`x = 47, y = 24, rule = B3/S2337bo\$37bo\$36bobo\$37bo\$37bo4\$2bo30bo5bo\$bobo28bobo3b3o\$o2bo27bo2b4o2b2o\$b2o29b2ob3ob3o\$36bo2b2o\$5b3o31b2ob2o\$4bobo25b3o5bo2bo\$4b2o6bo19b2o6b2obo\$4bo7bo18bo\$12bo17b2ob3o\$31b5o5b2o3bo\$8b3o3b3o15b3o5b2o4bo\$40bo5bo\$12bo\$12bo29b3o\$12bo!`

yootaa

Posts: 35
Joined: May 26th, 2016, 1:08 am
Location: Japan

### Re: 15 in 15: Efficient 15-bit Synthesis Project (42 SLs remain)

BlinkeSpawn wrote:15.1033 in likely 12: ...

Yes 15.1033 in 12:
`x = 109, y = 66, rule = B3/S2365bobo\$66boo\$66bo23\$86bo\$87bo\$85b3o\$\$88bo\$87bo\$12bo74b3o\$11bo29bo39bo\$11b3o26bobo37bobo\$3bo36bobo37bobo\$4boo8b3o24bo39bo\$3boo9bo\$15bo\$bo36bo39bo\$boo35bo39bo28boo\$obo35bo39bo25boobbo\$103bobobo\$46bo39bo15bo3bo\$46bo39bo14bo\$46bo39bo14bobo\$102boo\$19boo\$19bobo\$19bo\$15b3o\$17bo\$16bo7\$62b3o\$64bo22b3o\$63bo23bo\$88bo\$\$83boo\$82boo\$84bo!`

15.1024 improved to 12:
`x = 153, y = 75, rule = B3/S2323bo\$22bo39bo39bo\$22b3o36bobo37bobo\$61bobo37bobo\$25b3o34bo39bo\$25bo\$26bo3\$bbo\$3bo37boo38boo\$b3o36bobbo36bobbo\$5boo34boo38boo\$4bobo\$6bo\$boo39boo38boo62boo\$obo39boo38boo61bobo\$bbo142bobboo\$146bobobo\$147bo3bo\$152bo\$151boo3\$93bo\$89boobbobo\$90booboo\$89bo\$96bobo\$96boo\$97bo34boo\$132bobo\$132bo11\$137boo\$137bobo\$137bo13\$141boo\$140boo\$142bo12\$138boo\$137boo\$139bo!`

BlinkerSpawn wrote:15.890 in 13G: ... That was really difficult to fit in.

chris_c wrote:Down to 11G with a couple of tweaks:

I came up with a different 11-glider solution, where the two sparks and cleanup are separate:
`x = 134, y = 32, rule = B3/S2364bo\$62boo\$63boo\$\$58bo\$58bobo15bo\$58boo16bobo\$50bo25boo\$51boo\$50boo4\$65bo\$54bo9boo23boo18boo18boo\$53boo9bobo21bobbo16bobbo16bobbo\$53bobo31bobobo15bobobo15bobobo\$22boo18boo43boobboo14boobboo14boobboo\$boo18bobbo16bobbo6boo38bo19bo19bo\$obo19boo18boo6bobo40bo19bo19bo\$bbo49bo39boo18boo18boo\$4boo\$4bobo\$4bo\$\$94bo19bo\$30bo63bo19bo\$30boo62bo19bo\$29bobo\$115boo\$115bobo\$115bo!`

15.939 in 12; it's likely that the 5-glider spark can be reduced to 3:
`x = 115, y = 3074bo\$74bobo\$74boo4\$72bobo5bo\$41bo30boo5bo\$42boo29bo5b3o\$41boo\$22boo38boo\$bobo17bobbo36bobbo\$bboo17bobbo36bobbo46bo\$bbo19boo38boo46bobo\$76b3o30bobbo\$boo54bo18bo31bo3bobo\$obo55bo18bo29bo5boo\$bbo53b3o49b3o\$60boo48bo\$61boo\$60bo\$83boo\$83bobo\$83bo\$67boo\$67bobo\$67bo\$58boo\$57bobo\$59bo!`

yootaa wrote:15.835 ...

15.835 in 13:
`x = 155, y = 33, rule = B3/S2354bobo\$55boo\$55bo\$67bobo\$67boo\$68bo\$109bo\$110bo\$25boo19bo8boo51b3o\$9bo15boo17bobo8boo25boo28boo\$7boo36boo35boo28boo17bo\$3bo4boo55bo65bobo\$4boo42boo14boo65boo\$3boo44boo13bobo23bo29bo29bo\$48bo40bobo8bo18bobo8bo18bobo\$boo59boo24bobbo8bo17bobbo8bo17bobbo\$obo21boo16boo10boo5bobo24booboboo5bo17booboboo5bo17booboboo\$bbo21boo17boo9boo7bo27bobbo26bobbo26bobbo\$42bo48bobo27bobo27bobo\$92bo29bo29bo5\$97bo29bo\$97bo29bo\$97bo29bo\$\$93b3o3b3o21b3o3b3o\$\$97bo29bo5boo\$97bo29bo4boo\$97bo29bo6bo!`

yootaa wrote:15.848 ...

15.848 in 13:
`x = 122, y = 35, rule = B3/S2378bo\$76bobo\$77boo\$88bo\$89boo5bo\$88boo7bo\$95b3o\$\$98bobo\$91bo6boo\$91boo6bo\$90bobo3\$4bobo\$4boo18bo19bo19bo29bo\$5bo17bobo17bobo17bobo27bobo\$23boo18boo18boo28boo\$3b3o5bo104boo\$5bo4bo19bo19bo19bo29bo16bo\$4bo5b3o16bobo17bobo17bobo27bobo15bobo\$22boo5bobo10boo5bobo10boo5bobo20boo5bobo16bobo\$boo10b3o5bobbo5bo10bobbo5bo10bobbo5bo20bobbo5bo15bobobbo\$obo10bo8boo18boo18boo28boo21bobobboo\$bbo11bo101bo\$4boo\$4bobo58b3o27b3o\$4bo\$\$50bo\$49boo\$49bobo\$45boo\$46boo\$45bo!`

Goldtiger997 wrote:Can anyone find a cleanup in 5 gliders for this synthesis of 15.376? ...

chris_c wrote:Yes, found a 5 glider cleanup and saved a glider early on by using a hive instead of a boat.
13G in total: ...

I think you meant 15.476. This also reduces the related 17- and 18-bit bipole and triple w/two siamese feathers to 24 and 25 respectively:
`x = 150, y = 42bbo\$obo29bo\$boo29bobo\$32boo96bo\$129bo\$129b3o\$\$117bo\$118boo\$31bo34bobo48boo\$29boo36boo56bo\$5bobo22boo35bo42bo12bobo\$6boo10bobo54bo35boo11boo\$6bo12boo51bobbobo32boo24bo\$3bo15bo50bobobboo52bo4boo\$bobo5bo12bo48boo56bobo3boo\$bboo6boo9bo107boo\$9boo10b3o\$91bo29bo\$90bobo27bobo\$90bobbo26bobbo\$91boo28boo\$107boo32boo\$52boo52bobo32bobo\$52bobo53bo3bobo\$23boo3boo28boo13boo3boo13boo3boo13boo8boo3boo13bobobboo\$23bobbobbo9boo13bobobbo13bobbobbo13bobbobbo13bo9bobbobbo16bobbo\$25boobo9boo15boobo16boobo16boobo26boobo16boobo\$27bo12bo16bo19bo19bo17boo10bo19bo\$24bobo27bobo17bobo17bobo19boo6bobo17bobo\$24boo28boo18boo18boo19bo8boo18boo4\$5boo\$4bobo\$6bo3\$8bo\$8boo\$7bobo!`

yootaa wrote:15.986 ...

15.986 from 13. It should be possible to reduce the cleanup to 2 gliders.
`x = 254, y = 539bo\$10bo\$8b3o\$151bo\$39bo111bobo\$38bo112boo\$38b3o\$\$6bo\$4bobo\$5boo5\$205bo\$203bobo\$63b3o27b3o47b3o58boo\$\$61bo29bo45bo3bo24bo39bo\$61bo29bo46bobbo24bo39bo\$61bo29bo44b3obbo24bo39bo7\$21bo40boo28boo48boo\$19boo40bobbobboo22bobbobboo18boo22bobbobboo38boo38boo18boo\$20boo39bobbo3bo22bobbo3bo19bo22bobbo3bo39bo39bo19bo\$62boo4bobobbo18boo4bobobbo14bobobbo18boo4bobobbo34bobobbo34bobobbo14bobobbo\$20bo48b5o25b5o15b5o25b5o35b5o35b5o15b5o\$12bo6boo\$12boo5bobo49bo29bo19bo29bo39bo39bo19bo\$11bobo42boo12bobo13boo12bobo17bobo13boo12bobo37bobo37bobo17bobo\$boo52bobbo12bo13bobbo12bo19bo13bobbo12bo39bo39bo19bo\$obo53boo28boo48boo\$bbo\$5boo\$6boo\$5bo5\$39b3o\$39bo\$40bo\$\$19b3o\$21bo\$20bo!`
mniemiec

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (35 SLs remain)

mniemiec wrote:

BlinkerSpawn wrote:15.890 in 13G: ... That was really difficult to fit in.

chris_c wrote:Down to 11G with a couple of tweaks:

I came up with a different 11-glider solution, where the two sparks and cleanup are separate:
`rle`

The second of chris_c's tweaks is equally valid here, giving 10G:
`x = 76, y = 29, rule = B3/S2364bo\$62b2o\$63b2o8bo\$73bobo\$58bo14b2o\$58bobo\$58b2o\$50bo\$51b2o\$50b2o4\$65bo\$54bo9b2o\$53b2o9bobo\$53bobo\$22b2o18b2o\$b2o18bo2bo16bo2bo6b2o\$obo19b2o18b2o6bobo\$2bo49bo\$4b2o\$4bobo\$4bo3\$30bo\$30b2o\$29bobo!`
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (35 SLs remain)

mniemiec wrote:
Goldtiger997 wrote:Can anyone find a cleanup in 5 gliders for this synthesis of 15.376? ...

chris_c wrote:Yes, found a 5 glider cleanup and saved a glider early on by using a hive instead of a boat.
13G in total: ...

I think you meant 15.476...

Sorry, I keep on doing that.

Here's 15.486 in 14 gliders:

`x = 83, y = 93, rule = B3/S2381bo\$80bo\$80b3o28\$28bobo\$29b2o\$29bo2\$37bo4bo\$38b2obo\$37b2o2b3o10\$46bo\$44b2o\$45b2o2\$46bo\$45b2o\$31bo13bobo\$32b2o2bo\$31b2o2bo\$35b3o\$28bo\$27bo13bo\$27b3o9b2o\$40b2o\$27bo\$27b2o\$26bobo13b3o\$42bo\$43bo19\$bo\$b2o\$obo5\$77b3o\$77bo\$78bo!`
Things to work on:
• Work on the snowflakes orthogonoid

Goldtiger997

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (34 SLs remain)

15.487 in 13G:
`x = 119, y = 28, rule = B3/S2321bobo\$21b2o\$22bo62bo\$86bo\$84b3o4\$10bobo\$bo8b2o\$2bo8bo\$3o30b2o2b2o14b2o2b2o14b2o2b2o14b2o2b2o15bo2b2o\$33bobo2bo14bobo2bo14bobo2bo14bobo2bo14bobo2bo\$35bobo17bobo17bobo7bo9bobo14bo2bobo\$5b2o27bobo17bobo17bobo6bobo8bobo15bobobo\$6b2o27bo19bo17bobo8b2o7bobo17bobo\$5bo44bo23bo19bo19bo\$51b2o33b3o\$50b2o2b2o32bo\$53bobo31bo\$55bo3\$7b3o83bo\$7bo2bo81b2o\$7bo84bobo\$7bo\$8bobo!`

Bob Shemyakin
BobShemyakin

Posts: 211
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### Re: 15 in 15: Efficient 15-bit Synthesis Project (34 SLs remain)

This is slightly off-topic, but I noticed that 13.238 can be tightened up slightly, reducing it from 7 to 6 gliders. This may improve some other syntheses:
`x = 35, y = 16, rule = B3/S23bo\$bbo14bo\$3o13bo\$16b3o\$\$bo\$o32bo\$3o29bobo\$6b3o23bobo\$6bo23boobo\$b3o3bo23bo\$3bo27bobo\$bbo29boo\$13boo\$12boo\$14bo!`
mniemiec

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (34 SLs remain)

Here's 15.1088 in 10 gliders using the converter I found on 2016-10-29:

`x = 75, y = 22, rule = B3/S2354bo\$52b2o\$46bo6b2o\$47bo\$45b3o\$41bo\$42b2o\$41b2o7bo\$3bo46bobo\$4bo45b2o\$2b3o63b2o\$48b3o18bo\$5bobo42bo18bob2o\$5b2o42bo20bobo\$6bo16b2o28b2o18b2o\$24bo29bo19bo\$23bo29bo19bo\$22bo29bo19bo\$6b3o13b2o11b2o15b2o18b2o\$3o3bo29b2o\$2bo4bo27bo\$bo!`
Things to work on:
• Work on the snowflakes orthogonoid

Goldtiger997

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Location: 11.329903°N 142.199305°E

### Re: 15 in 15: Efficient 15-bit Synthesis Project (33 SLs remain)

Do you guys think that 15.786 can be taken off the list given an improvement on 13.82?
I'm pretty sure it's not on Catagolue (or just has 1 or 2 soups) and that seems like a somewhat plausible route.
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (33 SLs remain)

BlinkerSpawn wrote:Do you guys think that 15.786 can be taken off the list given an improvement on 13.82?

13.82 in 8G gives 15.786 in 12G:

`x = 67, y = 21, rule = B3/S2327bo\$26bo\$26b3o3\$30bo\$29bo23bo\$29b3o20bobo\$53bobo\$55bo\$54bo\$2bo20bobo27bo\$obo21b2o6b2o19bobo\$b2o21bo6b2o21bobo\$33bo21bo5b2o\$2bo19b2o12b3o21b2o\$2b2o17bo2bo11bo25bo\$bobo17bo2bo12bo27b2o\$22b2o6b3o19b2o6b2o2b2o\$32bo20b2o4bobo4bo\$31bo20bo8bo!`
chris_c

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (31 SLs remain)

15.840 in 12?
`x = 74, y = 79, rule = B3/S238bo\$9b2o\$8b2o2\$71bo\$71bobo\$71b2o20\$45bo\$45bo\$45bo7\$41b3o\$41bo\$42b3o\$44bo2\$36b2o\$26b2o7bo2bo\$26b2o8bobo\$37bo33\$b2o\$obo\$2bo!`
LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

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### Re: 15 in 15: Efficient 15-bit Synthesis Project (31 SLs remain)

BlinkerSpawn wrote:Do you guys think that 15.786 can be taken off the list given an improvement on 13.82?

That also gives 14.269 (EDIT: not 14.239) and 15.782 from 10. When and where was the improvement for 13.82 announced? I hadn't been aware of it.

Here it is from 13 (it could be 12 if the junk can be made from 3 gliders, rather than tub+glider):
`x = 243, y = 70, rule = B3/S23157bobo\$157boo\$158bo13\$58bo\$57bo\$57b3o\$55bo\$56bo122boo28boo28boo\$54b3o28boo28boo59boobbo25boobbo25boobbo\$85boo28boo60bobo27bobo27bobo\$177boboo26boboo26boboo\$173boo3bobbo21boo3bobbo26bobbo\$173boo5bobo20boo5bobo27bobo\$181bo29bo29bo\$\$201boo\$167boo28booboo\$59bo26bo29bo49bobo27bobo3bo\$58bo26bobo27bobo49bo29bo\$55boob3o23bobbo26bobbo\$54bobo28boo28boo\$56bo\$123bo\$123bobo\$o3bo118boo\$boobobo\$oobboo26bo29bo13bo15bo29bo\$31bobo27bobo12bobo12bobo5b3o19bobo5b3o\$6b3o23bo29bo13boo14bo29bo\$6bo\$7bo65b3o\$73bo\$74bo23\$153b3o\$153bo\$154bo!`

EDIT: 14.269 from 10, 15.782 from 10.
With a slight alteration, this also gives 12.51 from 9, hence 14.81 from 11:
`x = 186, y = 27, rule = B3/S23110bo\$111bo\$109b3o4\$125bo\$124bo\$103boo19b3o6boo\$82bobo17bobbo13bo12bobbo\$83boo17bobbo14bo11bobbo\$83bo19boo13b3o12boo\$bo19bo19bo19bo61bo\$obo17bobo17bobo17bobo19boo40boo6bo8boo18boo18boo\$bobo17bobo17bobo17bobo17bobo39boo6boo8bobo17bobo17bobo\$3bo19bo19bo19bo19bo47bobo9bo19bo19bo\$bbo19bo19bo19bo79bo19bo19bo\$bo19bo19bo19bo79bo19bo19bo\$bobo17bobo17bobo17bobo77bobo17bobo17bobo\$bbobo17bobo17bobo17bobo60b3o14bobo17bobo17bobo\$3bo19boo18bo19bobo61bo15bo19bo19bobo\$48bo15bo61bo41bo15bo\$9boo35boo118boo\$5bobboo33boobboo114boobboo\$5boo3bo32bobo82b3o32bobo\$4bobo36bo86bo32bo\$129bo!`
Last edited by mniemiec on November 10th, 2016, 3:35 pm, edited 2 times in total.
mniemiec

Posts: 957
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### Re: 15 in 15: Efficient 15-bit Synthesis Project (31 SLs remain)

`x = 74, y = 79, rule = B3/S238bo\$9b2o\$8b2o2\$71bo\$71bobo\$71b2o20\$45bo\$45bo\$45bo7\$41b3o\$41bo\$42b3o\$44bo2\$36b2o\$26b2o7bo2bo\$26b2o8bobo\$37bo33\$b2o\$obo\$2bo!`

Here it is from 12!
`x = 122, y = 119, rule = B3/S235\$10bo\$11b2o\$10b2o2\$105bo\$105bobo\$105b2o12\$82bo\$82bobo\$82b2o17\$55b2o\$55bobo\$51b2o2bo\$50bobo\$52bo4\$54b2o\$53bobo\$45bobo7bo\$46b2o\$46bo2\$118bo\$117bobo\$113b2obobo\$39bobo71bob2o\$40b2o75bo\$40bo73b3o\$43bo70bo\$43b2o\$42bobo2\$82b3o\$82bo\$83bo2\$66b2o\$65b2o\$67bo41\$3b2o\$2bobo\$4bo!`

Bob Shemyakin
BobShemyakin

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