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Spaceship Discussion Thread

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

Re: Spaceship Discussion Thread

Postby Sokwe » September 12th, 2018, 6:08 pm

Hdjensofjfnen wrote:Are there any small spaceships that are period 2?

From the moving objects collection (velocity-c2/c2-extended/c2-0002.rle):
#C All known period-2 ships up to 75 bits.
#C Spaceships found by Dean Hickerson, David Bell, Harmut Holzwart,
#C Aidan F. Pierce, and Matthias Merzenich
x = 611, y = 281, rule = B3/S23
28bobo$27bo2bo144bobo$26b2o146bo2bo$25bo147b2o14bobo$24b4o144bo4bo10bo
2bo$23bo4bo142b5obo9b2o$23bo2bo141b2o16bo$23bo2bo140bo3b3o11b4o$24bo
141bo3bo13bo4bo6bo$25b4obo135bo5bo11bo2bo5b2obo$26bo3bo135bo2bo2bo11bo
2bo5bo$obobo3bo3bo14bo112bobobo3bobobo14bobo2b2obo9bo7bo$27bobo145bo
10b4obo$o7bo3bo127bo7bo3bo13b3o18bo3bo$26b3o137b2o20bo$obobo3bobobo13b
2o112bobobo3bobobo13b3o19b5o6bo$26b3o167b2obo$o3bo7bo127bo3bo7bo14bobo
20b3o3bo$27bobo137bo22bo5bo$obobo7bo14bo112bobobo3bobobo13bo3bo19bo3bo
$26bo3bo134b4obo20bo3b3o$25b4obo133bo27b2o$24bo138bo2bo28b5obo$23bo2bo
136bo2bo29bo4bo$23bo2bo136bo4bo28b2o$23bo4bo135b4o30bo2bo$24b4o137bo
33bobo$25bo140b2o$26b2o139bo2bo$27bo2bo137bobo$28bobo7$171bo$168bobobo
$167bo2bo$166b2o91bobo$165bo92bo2bo$28bobo133b4o89b2o66bo23bo$27bo2bo
132bo4bo23bobo19bobo19bo19bo3bo13bobo21bobo21bobobo19bobobo$26b2o135bo
2bo24bo2bo18bo2bo16b4o18b3obo13bo2bo20bo2bo20bo2bo20bo2bo$25bo137bo2bo
23b2o20b2o19b3o16b2o18b2o22b2o22b2o22b2o$24b4o136bo24bo21bo4bo14bo3bo
15bo3b5o11bo23bo23bo23bo$23bo4bo136b4obo17b6o16b5obo14b3o16bo3bo15b4o
20b4o20b4o20b4o$23bo2bo139bo3bo14b2o7bo12b2o19bobo4bo14bo5b2o11bo4bo6b
o11bo4bo6bo11bo4bo18bo4bo$obobo3bobobo10bo2bo113bobobo3bobobo14bo16bo
3b3obo13bo3b3o14b8o15bo2bo2b4o9bo2bo5b2obo11bo2bo5b2obo11bo2bo20bo2bo$
24bo142bobo13bo3bo4bo12bo3bo16b2o23bobo5bo9bo2bo5bo14bo2bo5bo14bo2bo
20bo2bo$o7bo16b4obo113bo3bo3bo30bo5bo4bo10bo5bo13b2o4b2o37bo7bo15bo7bo
15bo23bo$26bo3bo135b3o14b3o3b5o11b3o3bo14bobo3bo2bo14b3o18b4obo18b4obo
18b4obo18b4o$obobo3bobobo14bo116bo3bo3bo13b2o38bo4b2obo18bobo14b2o20bo
3bo19bo3bo19bo3bo25bobo$27b6o133b2o15b3o3b5o12b2o6bo11b2o22b3o20bo23bo
23bo21bobo2b2o2bob2o$o3bo7bo25bo105bo3bo3bo13b3o14bo5bo4bo11bobo17bo2b
o43b5o19b5o19b6o7bo7b2o4b2o$29b3o3b4o144bo3bo4bo13b2o2b2obo13bo4bo2bo
15bobo30bo21bo25b2o9b2o7bo$obobo3bobobo16bo5b2o107bo3bobobo14bobo14bo
3b3obo14bob3obobo11b4obobo16bo23b3o3b4o12b3o3b4o16b3o3b4obo9b7obo$29bo
3bo133bo17b2o7bo19bo14bo6bo13bo3bo20bo5b2o14bo5b2o18bo5b2o14bobo6bo$
30bo3b5o127bo3bo17b6o15b5obo14b5obo12b4obo20bo3bo17bo3bo21bo3bo20b5obo
$31b2o132b4obo18bo20bo4bo14bo17bo27bo3b5o13bo3b5o17bo3b5o15bo$34b3obo
125bo25b2o19b3o17b3obo11bo2bo26b2o20b2o24b2o22b3obo$35bo3bo123bo2bo24b
o2bo16bo3bo16bo3bo10bo2bo29b3obo17b3obo21b3obo17bo3bo$36b2o125bo2bo25b
obo18b3o17b2o12bo4bo28bo3bo17bo3bo21bo3bo17b2o$37bo2bo122bo4bo44b4o17b
o2bo10b4o30b2o20b2o24b2o20bo2bo$38bobo123b4o48bo18bobo11bo33bo2bo18bo
2bo22bo2bo18bobo$165bo84b2o32bobo19bobo23bobo$166b2o83bo2bo$167bo2bo
81bobo$168bobobo$171bo5$51bo$28bobo17bobobo$27bo2bo16bo2bo167bobo$26b
2o18b2o127bobo18bobo18bo2bo$25bo19bo128bo2bo17bo2bo17b2o17bo$24b4o16b
4o125b2o19b2o19bo4bo11bobobo19bobo21bobo$23bo4bo14bo4bo123bo4bo15bo4bo
15b5obo10bo2bo20bo2bo20bo2bo$23bo2bo16bo2bo124b5obo14b5obo12b2o17b2o
22b2o22b2o$23bo2bo16bo2bo121b2o19b2o19bo3b3o12bo23bo23bo$24bo19bo122bo
3b3o14bo3b3o14bo3bo14b4o20b4o8bo11b4o$25b4obo14b4obo115bo3bo16bo3bo17b
o5bo11bo4bo6bo11bo4bo6bobo9bo4bo6bo$26bo3bo15bo3bo115bo5bo14bo5bo15bo
2bo2bo11bo2bo5b2obo11bo2bo5b2obo11bo2bo5b2obo$obobo3bobobo14bo19bo92bo
bobo4bo16bo2bo2bo14bo2bo2bo16bobo2b2obo8bo2bo5bo14bo2bo5bo14bo2bo5bo$
27bobo17bobo117bobo2b2obo12bobo2b2obo21bo9bo7bo15bo7bo15bo7bo$o7bo135b
o4bo25bo20bobo10b3o17b4obo18b4obo18b4obo$26b3o17b3o117b3o18b3o7bo11b2o
19bo3bo19bo3bo19bo3bo$obobo3bobobo13b2o18b2o96bo4bo16b2o19b2o20b2o20bo
23bo23bo11bo$26b2o18b3o117b3o18b3o19b3o19b5o6bo12b5o6bo12b5o6bobo$o3bo
3bo3bo13b3o115bo4bo89b2obo20b2obo20b2obo$47bobo117bobo18bobo19bobo20b
3o3bo17b3o3bo17b3o3bo$obobo3bobobo14bobo17bo96bo4bo17bo20bo21bo22bo5bo
17bo5bo17bo5bo$27bo18bo3bo115bo3bo16bo3bo17bo3bo19bo3bo19bo3bo19bo3bo$
26bo3bo14b4obo114b4obo15b4obo16b4obo20bo3b3o17bo3b3o17bo3b3o$25b4obo
13bo119bo20bo21bo27b2o22b2o22b2o$24bo18bo2bo116bo2bo17bo2bo18bo2bo28b
5obo17b5obo17b5obo$23bo2bo16bo2bo116bo2bo17bo2bo18bo2bo29bo4bo18bo4bo
18bo4bo$23bo2bo16bo4bo114bo4bo15bo4bo16bo4bo28b2o22b2o22b2o$23bo4bo15b
4o116b4o17b4o18b4o30bo2bo20bo2bo20bo2bo$24b4o17bo119bo20bo21bo33bobo
21bobo21bobo$25bo20b2o118b2o19b2o20b2o$26b2o19bo2bo116bo2bo17bo2bo18bo
2bo$27bo2bo17bobo117bobobo16bobo19bobo$28bobo140bo9$237bobo$31bo185bob
o16bo2bo$28bobobo142bo40bo2bo15b2o19bo47bo144bobo$27bo2bo141bobobo17bo
20b2o17bo3bo14bobobo19bobo21bobobo19bobo21bobo21bobo21bobo21bobo24bo2b
o$26b2o143bo2bo16b4o19bo3bo14b3obo14bo2bo20bo2bo20bo2bo20bo2bo20bo2bo
20bo2bo20bo2bo20bo2bo23b2o$25bo144b2o19b3o19b3obo12b2o19b2o22b2o22b2o
22b2o22b2o22b2o22b2o22b2o25bo4bo$24b4o141bo19bo3bo16b2o17bo3b5o12bo23b
o23bo23bo23bo23bo23bo23bo26b5obo$23bo4bo139b6o15b3o17bo3b5o10bo3bo16b
4o20b4o8bo11b4o20b4o8bo11b4o20b4o20b4o20b4o21b2o$23bo2bo138b2o7bo11bob
o4bo14bo3bo15bo5b2o12bo4bo6bo11bo4bo6bobo9bo4bo6bo11bo4bo6bobo9bo4bo
18bo4bo18bo4bo18bo4bo19bo3b3o$obobo3bobobo10bo2bo113bobobo3bobobo11bo
3b3obo12b8o15bo5b2o12bo2bo2b4o10bo2bo5b2obo11bo2bo5b2obo11bo2bo5b2obo
11bo2bo5b2obo11bo2bo20bo2bo20bo2bo20bo2bo20bo3bo$24bo138bo3bo4bo11b2o
22bo2bo2b4o11bobo5bo10bo2bo5bo14bo2bo5bo14bo2bo5bo14bo2bo5bo14bo2bo20b
o2bo20bo2bo20bo2bo20bo5bo$o11bo12b4obo113bo7bo10bo5bo4bo8b2o4b2o18bobo
5bo31bo7bo15bo7bo15bo7bo15bo7bo15bo23bo23bo23bo22b3o3bo$26bo3bo132b3o
3b5o10bobo3bo2bo34b3o19b4obo18b4obo18b4obo18b4obo18b4o20b4o11bo8b4o20b
4o19bo4b2obo$obobo7bo14bo116bo3bobobo38bobobo12b3o17b2o21bo3bo19bo3bo
19bo3bo19bo3bo25bobo4bo16bobo4bobo14bobo21bobo5bo7b2o6bo$27b6o130b3o3b
5o10b2o8bo13b2o18b2o22bo23bo23bo23bo21bobo2b2o2bob2obobo7bobo2b2o2bob
2obo9bobo2b2o2bob2obo9bobo2b2o2bob2obobo6bobo$o3bo7bo25bo105bo3bo14bo
5bo4bo9bo2bo20b3o17b3o21b5o19b5o19b5o19b5o16b2o4b2o8bo7b2o4b2o16b2o4b
2o7bobo6b2o4b2o7bo8b2o2bo$29b3o3b4o124bo3bo4bo12bo4bo2bo69bo23bo21bo
23bo12b2o7bo14b2o7bo14b2o7bo5bo8b2o7bo14bobo8bo$obobo7bo16bo5b2o107bo
3bobobo11bo3b3obo12b4obobo16bobo17bobo22b3o3b4o14b3o3b4o12b3o3b4o14b3o
3b4o13b7obo15b7obo15b7obo15b7obo22b2obo$29bo3bo131b2o7bo12bo6bo14bo19b
o24bo5b2o16bo5b2o14bo5b2o16bo5b2o16bobo6bo14bobo6bo14bobo6bo14bobo6bo
12b2o6bo$30bo3b5o129b6o14b5obo13bo3bo15bo3bo21bo3bo19bo3bo17bo3bo19bo
3bo22b5obo17b5obo17b5obo17b5obo12bo2bo4bo$31b2o136bo18bo18b4obo14b4obo
22bo3b5o15bo3b5o13bo3b5o15bo3b5o17bo23bo23bo23bo19bo4bo$34b3obo131b2o
17b3obo12bo19bo29b2o22b2o20b2o22b2o24b3obo19b3obo19b3obo19b3obo14b4obo
$35bo3bo131bo2bo15bo3bo10bo2bo16bo2bo30b3obo19b3obo17b3obo19b3obo19bo
3bo19bo3bo19bo3bo19bo3bo15bo$36b2o134bobo16b2o12bo2bo16bo2bo31bo3bo19b
o3bo17bo3bo19bo3bo19b2o22b2o22b2o22b2o18b4o$37bo2bo151bo2bo9bo4bo14bo
4bo30b2o22b2o20b2o22b2o22bo2bo20bo2bo20bo2bo20bo2bo15bo$38bobo152bobo
10b4o16b4o32bo2bo20bo2bo18bo2bo20bo2bo20bobo21bobo21bobo21bobo17b2o$
207bo19bo35bobo21bobo19bobo21bobo112b4o$208b2o18b2o221bo$209bo2bo16bo
2bo$210bobobo15bobo$213bo5$31bo19bo$28bobobo15bobobo201bobo13bobo$27bo
2bo16bo2bo169bo32bo2bo12bo2bo23bobo15bobo$26b2o18b2o127bobo18bobo18bob
obo30b2o14b2o25bo2bo14bo2bo$25bo19bo128bo2bo17bo2bo17bo2bo31bo15bo26b
2o16b2o90bo23bo$24b4o16b4o20bobo21bobo78b2o19b2o19b2o33b4o12b4o23bo4bo
12bo4bo12bobo21bobo21bobo21bobobo19bobobo19bobo$23bo4bo14bo4bo18bo2bo
20bo2bo77bo4bo15bo3bo16bo4bo18bobo8bo4bo10bo4bo21b5obo11b5obo11bo2bo
20bo2bo20bo2bo20bo2bo20bo2bo20bo2bo$23bo2bo16bo2bo19b2o22b2o79b5obo14b
3obo16b5obobo15bo2bo8bo2bo12bo2bo20b2o16b2o18b2o22b2o22b2o22b2o22b2o
22b2o$23bo2bo16bo2bo18bo23bo78b2o19b2o19b2o8bo15b2o11bo2bo12bo2bo19bo
3b3o11bo3b3o13bo23bo23bo23bo23bo23bo$24bo19bo19b4o20b4o75bo3b3o14bo3b
5o12bo3b3o19bo3bo10bo15bo20bo3bo13bo3bo15b4o20b4o20b4o8bo11b4o20b4o8bo
11b4o$25b4obo14b4obo12bo4bo18bo4bo73bo3bo16bo3bo16bo3bo21b3obo12b4obo
10b4obo14bo5bo11bo5bo12bo4bo6bo11bo4bo6bo11bo4bo6bobo9bo4bo6bo11bo4bo
6bobo9bo4bo6bo$26bo3bo15bo3bo12bo2bo20bo2bo75bo5bo14bo5b2o13bo5bo16b2o
19bo3bo11bo3bo14bo2bo2bo11bo2bo2bo12bo2bo5b2obo11bo2bo5b2obo11bo2bo5b
2obo11bo2bo5b2obo11bo2bo5b2obo11bo2bo5b2obo$obobo3bobobo14bo19bo15bo2b
o20bo2bo49bobobo3bobobo13bo2bo2bo14bo2bo2b4obo9bo2bo2bo15bo3b5o14bo15b
o18bobo2b2obo9bobo2b2obo9bo2bo5bo14bo2bo5bo14bo2bo5bo14bo2bo5bo14bo2bo
5bo14bo2bo5bo$27bobo17bobo14bo23bo78bobo2b2obo12bobo5b2o11bobo2b2obo
11bo3bo19bobo13bobo24bo17bobo8bo7bo15bo7bo15bo7bo15bo7bo15bo7bo15bo7bo
$o7bo3bo52b4o20b4obo49bo7bo22bobo20bo18bo11bo5b2o50b3o15b3o7bo10b4obo
18b4obo18b4obo18b4obo18b4obo18b4obo$26b3o17b3o23bobo15bo3bo71b3o7bo10b
3o18b3o18b3o3b4o13b3o13b3o16b2o16b2o20bo3bo19bo3bo19bo3bo19bo3bo19bo3b
o19bo3bo$obobo3bobobo13b2o18b2o17bobo2b2o2bob2o13bo52bo3bobobo13b2o19b
2o19b2o20bo7bo13b2o14b2o17b2o16b2o21bo23bo23bo11bo11bo11bo11bo23bo$26b
2o18b3o15b2o4b2o19b6o7bo61b3o18b3o18b3o19b2o20b3o13b3o16b3o15b3o20b5o
8bo10b5o6bo12b5o6bobo10b5o6bobo10b5o6bo12b5o6bo$o3bo3bo3bo13b3o36b2o7b
o27b2o40bo7bo77bobo106b2o20b2o21b2obo20b2obo20b2obo20b2obo$47bobo16b7o
bo18b3o3b4obo62bobo18bobo18bobo18b2o2bo18bobo13bobo16bobo15bobo21b3o3b
4obo10b3o3b4obo14b3o3bo17b3o3bo17b3o3bo17b3o3bo$obobo3bobobo14bobo17bo
19bobo6bo16bo5b2o43bo3bobobo14bo20bo20bo21bobo8bo10bo15bo18bo17bo23bo
5b2o14bo5b2o18bo5bo17bo5bo17bo5bo17bo5bo$27bo18bo3bo19b5obo16bo3bo68bo
3bo16bo3bo16bo3bo26b2obo9bo3bo11bo3bo14bo3bo13bo3bo20bo3bo17bo3bo21bo
3bo19bo3bo19bo3bo19bo3bo$26bo3bo14b4obo19bo23bo3b5o62b4obo15b4obo15b4o
bo18b2o6bo11b4obo10b4obo13b4obo12b4obo21bo3b5o13bo3b5o17bo3b3o17bo3b3o
17bo3b3o17bo3b3o$25b4obo13bo26b3obo19b2o67bo20bo20bo24bo2bo4bo10bo15bo
18bo17bo28b2o20b2o24b2o22b2o22b2o22b2o8bo$24bo18bo2bo25bo3bo21b3obo60b
o2bo17bo2bo17bo2bo23bo4bo11bo2bo12bo2bo15bo2bo14bo2bo29b3obo17b3obo21b
5obo17b5obo17b5obo17b5obobo$23bo2bo16bo2bo26b2o24bo3bo59bo2bo17bo2bo
17bo2bo23b4obo11bo2bo12bo2bo15bo2bo14bo2bo30bo3bo17bo3bo21bo4bo18bo4bo
18bo4bo18bo4bo$23bo2bo16bo4bo25bo2bo22b2o61bo4bo15bo4bo15bo4bo23bo14bo
4bo10bo4bo6bo6bo4bo12bo4bo29b2o20b2o24b2o22b2o22b2o22b2o$23bo4bo15b4o
27bobo23bo2bo59b4o17b4o17b4o25b4o11b4o12b4o4b2obo7b4o14b4o31bo2bo18bo
2bo22bo2bo20bo2bo20bo2bo20bo2bo$24b4o17bo56bobo60bo20bo20bo27bo15bo15b
o6bo11bo17bo34bobo19bobo23bobo21bobo21bobo21bobobo$25bo20b2o118b2o19b
2o19b2o27b2o13b4obo10b2o4bo12b2o16b2o155bo$26b2o19bo2bo116bo2bo17bo2bo
17bo2bo24b4o11bo3b2o11bo2bo15bo2bo14bo2bo$27bo2bo17bobobo115bobobo16bo
bo18bobo27bo13b2o14bobo2bo13bobobo13bobo$28bobo20bo119bo82b4o15bobo16b
o$257bo27$99bobo$49bobo20bobo23bo2bo14bobo18bobo88bo142bobo18bobo$48bo
2bo19bo2bo22b2o16bo2bo17bo2bo16bobo21bo23bo20b4o23bo23bo23bo23bo28bo
16bo2bo17bo2bo$35bo11b2o21b2o24bo3bo13b2o19b2o16bobo2bo18bobobo19bobob
o19b2o22bobobo19bobobo19bobobo19bobobo24bobobo14b2o19b2o$32bobobo9bo
22bo25b3obo13bo4bo15bo4bo12bo2bo20bo2bo20bo2bo19bo3b2o19bo2bo20bo2bo
20bo2bo20bo2bo25bo2bo15bo4bo15bo4bo$31bo2bo10b4o19b4o20b2o18b5obo14b5o
bo11b2o4bo17b2o22b2o22b4obo18b2o22b2o22b2o22b2o27b2o17b5obo14b5obo$30b
2o12bo4bo6bo10bo4bo6bo11bo3b5o9b2o19b2o18bo6bo16bo23bo23bo23bo23bo23bo
23bo28bo4bo11b2o19b2o$29bo14bo2bo5b2obo10bo2bo5b2obo10bo3bo13bo3b3o14b
o3b3o13b4o4b2obo12b4o8bo11b4o8bo11b4o20b4o20b4o20b4o20b4o25b5obobo8bo
3b3o14bo3b3o$28b6o10bo2bo5bo13bo2bo5bo13bo5b2o9bo3bo16bo3bo15bo4bo6bo
11bo4bo6bobo9bo4bo6bobo9bo4bo18bo4bo18bo4bo18bo4bo18bo4bo21b2o8bo8bo3b
o16bo3bo$25b2o7bo10bo7bo14bo7bo13bo2bo2b4o7bo5bo14bo5bo13bo2bo20bo2bo
5b2obo11bo2bo5b2obo11bo2bo20bo2bo20bo2bo20bo2bo20bo2bo22bo3b3o13bo5bo
14bo5bo$obobo3bo3bo11bo3b3obo13b4obo17b4obo16bobo5bo7bo2bo2bo14bo5bo
13bo2bo20bo2bo5bo14bo2bo5bo14bo2bo20bo2bo20bo2bo20bo2bo20bo2bo21bo3bo
16b3o3bo14b3o3bo$23bo3bo4bo14bo3bo18bo3bo33bobo2b2obo12b2o3b2obo11bo
23bo7bo15bo7bo15bo23bo23bo23bo23bo23bo5bo15bo4b2obo12bo4b2obo$4bo3bo3b
o10bo5bo4bo13bo22bo18b3o23bo20bo12b4obo18b4obo18b4obo18b4obo18b4o20b4o
11bo8b4o20b4o19b3o3bo15b2o6bobo10b2o6bo$23b3o3b5o14b5o18b5o14b2o15b3o
19bobo19bo3bo19bo3bo19bo3bo19bo3bo25bobo4bo16bobo4bobo14bobo21bobo5bo
8bo4b2obo12bobo6bo11bobo$4bo3bobobo77b2o15b2o19b2o2bo19bo23bo23bo23bo
21bobo2b2o2bob2obobo7bobo2b2o2bob2obo9bobo2b2o2bob2obo9bobo2b2o2bob2ob
obo7b2o6bo12b2o2bo16b2o2bo8bo$23b3o3b5o14b5o16b5o16b3o14b3o18bobo21b6o
18b5o19b5o19b6o15b2o4b2o8bo7b2o4b2o16b2o4b2o7bobo6b2o4b2o7bo9bobo19bob
o8bo9bobo8bobo$4bo7bo10bo5bo4bo13bo20bo46bo11b2o6bo26bo23bo21bo25bo10b
2o7bo14b2o7bo14b2o7bo5bo8b2o7bo14b2o2b2obo22b2obo17b2obo$23bo3bo4bo14b
o3bo16bo3bo18bobo14bobo2b2obo11bo4b2obo17b3o3b4o14b3o3b4o12b3o3b4o16b
3o3b4o11b7obo15b7obo15b7obo15b7obo15bob3obobo12b2o6bo12b2o6bo$4bo7bo
11bo3b3obo13b4obo15b4obo18bo15bo2bo2bo13b3o3bo20bo5b2o16bo5b2o14bo5b2o
18bo5b2o14bobo6bo14bobo6bo14bobo6bo14bobo6bo20bo13bo2bo4bo12bo2bo4bo$
25b2o7bo10bo7bo12bo7bo15bo3bo12bo5bo13bo5bo20bo3bo19bo3bo17bo3bo21bo3b
o20b5obo17b5obo17b5obo17b5obo15b5obo13bo4bo15bo4bo$28b6o10bo2bo5bo11bo
2bo5bo14b4obo12bo3bo15bo3bo23bo3b5o15bo3b5o13bo3b5o17bo3b5o15bo23bo23b
o23bo22bo4bo13b4obo15b4obo$29bo14bo2bo5b2obo8bo2bo5b2obo10bo19bo3b3o
13bo3b3o21b2o22b2o20b2o24b2o22b3obo19b3obo19b3obo19b3obo18b3o17bo20bo$
30b2o12bo4bo6bo8bo4bo6bo9bo2bo18b2o18b2o28b3obo19b3obo17b3obo21b3obo
17bo3bo19bo3bo19bo3bo19bo3bo17bo3bo16b4o17b4o$31bo2bo10b4o17b4o17bo2bo
21b5obo13b5obo21bo3bo19bo3bo17bo3bo21bo3bo17b2o22b2o22b2o22b2o21b3o16b
o20bo$32bobobo9bo20bo19bo4bo20bo4bo14bo4bo22b2o22b2o20b2o24b2o20bo2bo
20bo2bo20bo2bo20bo2bo18b4o17b2o19b2o$35bo11b2o19b2o18b4o22b2o18b2o26bo
2bo20bo2bo18bo2bo22bo2bo18bobo21bobo21bobo21bobo21bo17b4o17b4o$48bo2bo
17bo2bo16bo25bo2bo16bo2bo24bobo21bobo19bobo23bobo135bo20bo$49bobo18bob
o17b2o24bobo17bobo$91bo2bo$92bobobo$95bo6$28bobo21bo17bobo21bo134bo$
27bo2bo18bobobo15bo2bo18bobobo16bobo71bo20bo18bobobo$26b2o20bo2bo16b2o
20bo2bo17bo2bo26bobo18bobo18bobobo16bobobo16bo2bo60bobo18bobo20bobo
270bobo$25bo21b2o18bo21b2o19b2o28bo2bo17bo2bo17bo2bo17bo2bo17b2o62bo2b
o17bo2bo19bo2bo18bo49bo49bo74bo75bo2bo$24b4o18bo19b4o18bo20bo29b2o19b
2o19b2o19b2o19bo4bo58b2o19b2o21b2o18bobobo20bobo22bobobo20bobo22bobobo
20bobo22bobo22bobobo20bobo22bobo25b2o$23bo4bo16b4o16bo4bo16b4o17b4o26b
o3bo16bo4bo15bo4bo15bo4bo15b5obobo15bobo19bobo15bo3bo16bo3bo18bo3bo15b
o2bo21bo2bo21bo2bo21bo2bo21bo2bo21bo2bo21bo2bo21bo2bo21bo2bo21bo2bo24b
o4bo$23bo2bo17bo4bo15bo2bo17bo4bo15bo4bo24b3obo16b5obo14b5obobo12b5obo
bo10b2o8bo15bo2bo18bo2bo14b3obo16b3obo18b3obo15b2o23b2o23b2o23b2o23b2o
23b2o23b2o23b2o23b2o23b2o26b5obo$23bo2bo17bo2bo17bo2bo17bo2bo17bo2bo
23b2o19b2o19b2o8bo10b2o8bo10bo3b3o19b2o20b2o14b2o19b2o21b2o20bo24bo24b
o24bo24bo24bo24bo24bo24bo24bo25b2o$24bo19bo2bo18bo19bo2bo17bo2bo22bo3b
5o12bo3b3o14bo3b3o14bo3b3o14bo3bo21bo3bo17bo15bo3b5o12bo3b5o14bo3b5o
13b4o21b4o8bo12b4o21b4o8bo12b4o21b4o8bo12b4o21b4o8bo12b4o21b4o22bo3b3o
$25b4obo14bo21b4obo14bo20bo23bo3bo16bo3bo16bo3bo16bo3bo17bo5bo18b3obo
17b6o10bo3bo16bo3bo18bo3bo17bo4bo6bo12bo4bo6bobo10bo4bo6bo12bo4bo6bobo
10bo4bo6bo12bo4bo6bobo10bo4bo6bo12bo4bo6bobo10bo4bo19bo4bo20bo3bo$26bo
3bo15b4obo16bo3bo15b4obo15b4obo17bo5b2o13bo5bo14bo5bo14bo5bo15bo2bo2bo
15b2o20b2o7bo9bo5b2o13bo5b2o15bo5b2o14bo2bo5b2obo12bo2bo5b2obo12bo2bo
5b2obo12bo2bo5b2obo12bo2bo5b2obo12bo2bo5b2obo12bo2bo5b2obo12bo2bo5b2ob
o12bo2bo21bo2bo22bo5bo$27bo19bo3bo17bo19bo3bo16bo3bo17bo2bo2b4obo9bo2b
o2bo14bo2bo2bo14bo2bo2bo16bobo2b2obo11bo3b5o13bo3b3obo11bo2bo2b4o11b3o
3b4o13bo5b4o12bo2bo5bo15bo2bo5bo15bo2bo5bo15bo2bo5bo15bo2bo5bo15bo2bo
5bo15bo2bo5bo15bo2bo5bo15bo2bo21bo2bo22b3o3bo$obobo3bobobo14bobo18bo
20bobo18bo20bo21bobo5b2o11bobo2b2obo12bobo2b2obo12bobo2b2obo21bo10bo3b
o17bo3bo4bo12bobo5bo12bo7bo14b2o6bo13bo7bo16bo7bo16bo7bo16bo7bo16bo7bo
16bo7bo16bo7bo16bo7bo16bo17bo6bo25bo4b2obo$48bobo39bobo18bobo29bo18bob
o18bo20bobo10b3o17bo5b2o14bo5bo4bo31b2o44b4obo19b4obo19b4obo19b4obo19b
4obo19b4obo19b4obo19b4obo19b4o10b4o7b4o21b2o6bo$4bo3bo17b3o39b3o61b3o
18b3o7bo10b3o18b3o7bo11b2o18b3o3b4o12b3o3b5o10b3o19bobo20bobo21bo3bo
20bo3bo20bo3bo20bo3bo20bo3bo20bo3bo20bo3bo20bo3bo26bobo4b2o16bobo15bob
o$26b2o19b3o18b2o19b3o18b3o19b2o19b2o19b2o19b2o20b2o19bo7bo33b2o20b2o
2bo17b2o2bo21bo24bo24bo24bo24bo24bo24bo11bo12bo11bo10bobo2b2o2bob2o12b
obo2b2o2bob2o12b2o2bo$4bo3bobobo13b2o19b2o19b2o19b2o19b2o20b2o19b2o19b
3o18b3o19b3o18b2o19b3o3b4obo9b3o20bobo18bobo23b5o8bo11b5o8bo11b5o6bo
13b5o6bo13b5o6bo13b5o6bo13b5o6bobo11b5o6bobo8b2o4b2o17b2o4b2o7b2o10bob
o8bo$26b3o18b3o18b3o18b3o18b3o19b3o18b3o82bobo18bo5bo3b2o18bo21bo12b2o
6bo28b2o23b2o21b2o23b2o22b2obo21b2obo21b2obo21b2obo11b2o7bo15b2o7bo4b
4o16b2obo$4bo7bo162bobo18bobo19bobo17b2o2bo8bo7bo3bo4b2o11bobo2b2obo
13b2o3b2obo12bo4b2obo19b3o3b4obo13b3o3b4obo11b3o3b4obo13b3o3b4obo15b3o
3bo18b3o3bo18b3o3bo18b3o3bo15b7obo16b7obo7bo8b2o6bo$27bobo18bobo18bobo
18bobo18bobo19bobo18bobo18bo20bo21bo20bobo8bobo7bo3b3ob2o10bo2bo2bo15b
o5bo14b3o3bo22bo5b2o17bo5b2o15bo5b2o17bo5b2o19bo5bo18bo5bo18bo5bo18bo
5bo16bobo6bo15bobo6bo14bo2bo4bo$4bo3bobobo14bo20bo20bo20bo20bo21bo20bo
19bo3bo16bo3bo17bo3bo25b2obo10b2o7b2o8bo5bo15bo5bo14bo5bo22bo3bo20bo3b
o18bo3bo20bo3bo22bo3bo20bo3bo20bo3bo20bo3bo21b5obo18b5obo15bo4bo$26bo
3bo16bo3bo16bo3bo16bo3bo16bo3bo17bo3bo16bo3bo15b4obo15b4obo16b4obo17b
2o6bo16b6obo8bo3bo17bo3bo16bo3bo25bo3b5o16bo3b5o14bo3b5o16bo3b5o18bo3b
3o18bo3b3o18bo3b3o18bo3b3o18bo24bo21b4obo$25b4obo15b4obo15b4obo15b4obo
15b4obo16b4obo15b4obo14bo20bo21bo23bo2bo4bo17bo15bo3b3o15bo3b3o14bo3b
3o23b2o23b2o21b2o23b2o25b2o8bo14b2o8bo14b2o8bo14b2o23b3obo20b3obo18bo$
24bo20bo20bo20bo20bo21bo20bo19bo2bo17bo2bo18bo2bo22bo4bo20b2o14b2o20b
2o19b2o30b3obo20b3obo18b3obo20b3obo22b5obobo16b5obobo16b5obobo16b5obo
16bo3bo20bo3bo18b4o$23bo2bo17bo2bo17bo2bo17bo2bo17bo2bo18bo2bo17bo2bo
17bo2bo17bo2bo18bo2bo22b4obo21bo2bo14b5obo15b5obo14b5obo23bo3bo20bo3bo
18bo3bo20bo3bo22bo4bo19bo4bo19bo4bo19bo4bo17b2o23b2o20bo$23bo2bo17bo2b
o17bo2bo17bo2bo17bo2bo9bo8bo2bo17bo2bo17bo4bo15bo4bo16bo4bo22bo25bobo
15bo4bo16bo4bo15bo4bo24b2o23b2o21b2o23b2o25b2o23b2o23b2o23b2o21bo2bo
21bo2bo19b2o$23bo4bo15bo4bo15bo4bo6bo8bo4bo6bo8bo4bo6bobo7bo4bo15bo4bo
16b4o17b4o18b4o24b4o40b2o20b2o19b2o28bo2bo21bo2bo19bo2bo21bo2bo23bo2bo
21bo2bo21bo2bo21bo2bo19bobo22bobo19b4obo$24b4o17b4o17b4o4b2obo9b4o4b2o
bo9b4o4b2obo10b4o17b4o18bo20bo21bo26bo44bo2bo18bo2bo17bo2bo26bobo22bob
o20bobo22bobo24bobobo20bobobo20bobobo20bobo69b2o$25bo20bo20bo6bo13bo6b
o13bo6bo14bo20bo21b2o19b2o20b2o26b2o42bobo19bobo18bobo129bo24bo24bo95b
o$26b4obo15b4obo15b2o4bo14b2o4bo14b2o4bo15b2o19b2o20bo2bo17bo2bo18bo2b
o23b4o$26bo3b2o15bo3b2o16bo2bo17bo2bo17bo2bo18bo2bo17bo2bo18bobobo16bo
bo19bobo26bo$28b2o19b2o19bobo2bo15bobo2bo15bobo2bo16bobo18bobobo19bo$
28b4o17b4o20bobo18bobo18bobo40bo$31bo20bo!
-Matthias Merzenich
Sokwe
Moderator
 
Posts: 1334
Joined: July 9th, 2009, 2:44 pm

Re: Spaceship Discussion Thread

Postby Sokwe » September 12th, 2018, 11:00 pm

HartmutHolzwart wrote:here is a backend for a c/5 wick

I searched using qfind at search-width 10 and found this smaller completion that starts the same way:
x = 108, y = 19, rule = B3/S23
105bobo$92b3o9bob2o2$92bobo3bo4bobo$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo5bo5bobo3bo2bobob2ob3o$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o
4b2obo2b2o4b2obo2b2o4b2obo2b2o4bobo4b2o5b2o$2ob2o2b4ob2ob2o2b4ob2ob2o
2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob3o2b4o2bob2o3bo$90bob2o
10b3o$88obo3b8o3bo$90bo13bo$88obo3b8o3bo$90bob2o10b3o$2ob2o2b4ob2ob2o
2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob3o2b4o2bob2o3bo
$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b
2o4bobo4b2o5b2o$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bobo3bo2bob
ob2ob3o$92bobo3bo4bobo2$92b3o9bob2o$105bobo!

I also tried some larger wicks and found the following backend:
x = 103, y = 21, rule = B3/S23
82b2o2b2o$81b7o$81bo$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bobo13b3o
b2o$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2o5b
ob2o4b2o4b2o3bo$2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob
2o2b4ob2ob2ob4o2b3ob3o5bobobo$81bo3bo6bo2b3ob2o$82o2b9o2bo2bo2bo$93bo
2bo5bo$93o4b5o2$93o4b5o$93bo2bo5bo$82o2b9o2bo2bo2bo$81bo3bo6bo2b3ob2o$
2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2ob4o2b
3ob3o5bobobo$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo
2b2o4b2o5bob2o4b2o4b2o3bo$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bobo
13b3ob2o$81bo$81b7o$82b2o2b2o!

This one looked like it might connect to some known grayship components, but I couldn't get it to work.

Edit: I searched for a 2c/10 backend for a p6 wick using a search-width of 8 with both odd and gutter symmetries, but I had no luck. Here are the longest partials:
x = 72, y = 84, rule = B3/S23
3bo2bo$2bo$2bo3bo$2b4o4$10o$o9bo$o$bo8bo$4b2ob2o56bo$3bo2b2o46b2o6b2ob
obob3o$bo2bob2o45b3o13bo$o4b3o43b4o5bo4bobob2o$o2b2obo44bobo6b7ob3o$2o
4b2o5bo5bo5bo5bo5bo5bo5b2o10bob2obo3bo$2b5ob2obo2b2obo2b2obo2b2obo2b2o
bo2b2obo2b2o3b2o3b6o5bobo3bo$4bo2b3o2b4o2b4o2b4o2b4o2b4o2b4ob4o4b5o5bo
bo3bo2$4bo2b3o2b4o2b4o2b4o2b4o2b4o2b4ob4o4b5o5bobo3bo$2b5ob2obo2b2obo
2b2obo2b2obo2b2obo2b2obo2b2o3b2o3b6o5bobo3bo$2o4b2o5bo5bo5bo5bo5bo5bo
5b2o10bob2obo3bo$o2b2obo44bobo6b7ob3o$o4b3o43b4o5bo4bobob2o$bo2bob2o
45b3o13bo$3bo2b2o46b2o6b2obobob3o$4b2ob2o56bo$bo8bo$o$o9bo$10o4$2b4o$
2bo3bo$2bo$3bo2bo9$3b2o$2b2ob2o$3b4o$4b2o2$2b8o$b10o$2ob8o$b2o2$5b2ob
2o$4bo55b2o$5bo3bo50bobo$b2obo43b3o3b2o3b2obo2b2o$2o3bo41bo3bo4bo2bo2b
4o2b2obo$b2o6bo5bo5bo5bo5bo5bo5bo4bobob3o2b2obob2obob2o$2b4o4b2o4b2o4b
2o4b2o4b2o4b2o4bobo3bo3bob2ob2o4bo3bo$5bob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob4o4bo5bo2b2o7bo$56b2o10b3o$5bob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob4o4bo5bo2b2o7bo$2b4o4b2o4b2o4b2o4b2o4b2o4b2o4bobo3bo3bob2ob2o4bo
3bo$b2o6bo5bo5bo5bo5bo5bo5bo4bobob3o2b2obob2obob2o$2o3bo41bo3bo4bo2bo
2b4o2b2obo$b2obo43b3o3b2o3b2obo2b2o$5bo3bo50bobo$4bo55b2o$5b2ob2o2$b2o
$2ob8o$b10o$2b8o2$4b2o$3b4o$2b2ob2o$3b2o!

I did not try any of the larger wicks.

Edit 2: Here's a backend for another wick in the series:
x = 170, y = 21, rule = B3/S23
79bo8bo8b2obo8b2o46bo6bo$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo15bobo5b2o9b
2obo8bobo4bo29b2o9b2o4bobo$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b
2obo2b2o4b2ob3o9b2o5bo7b2ob2ob2o4bo3b2o2b3obo14b2o2bobo7b2o5b4obo4b2o$
2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o15bo2bo4bo7bo4b
3ob2obo3bo21bo3bo2b2o3bo5bo3bob2o3bo$66bo12b5o5b4o3bo3b2o6bo10b2obobob
2o2b4obo2bo2b2o2bobobob6obo5b4o$66o5bo6bo2b2obo4b2o11bo4bo2bo4b3obo3bo
bo4bo2b5o6b4obo4b2o3b2o3bob4o$67bob2ob2o4b3o4b2o6bo15bo9bo2bob5ob2ob2o
8bobo13b2ob2o$70o3bo2bobo6bob4o2bo25bo2b4o5bob2o7b2o17b2o$68bo4b3o5bo
3bo7bo26bo10bobo8b2o17bo2bo$68o6bo4b3o4b7o38bo12bo17b2o2$68o6bo4b3o4b
7o38bo12bo17b2o$68bo4b3o5bo3bo7bo26bo10bobo8b2o17bo2bo$70o3bo2bobo6bob
4o2bo25bo2b4o5bob2o7b2o17b2o$67bob2ob2o4b3o4b2o6bo15bo9bo2bob5ob2ob2o
8bobo13b2ob2o$66o5bo6bo2b2obo4b2o11bo4bo2bo4b3obo3bobo4bo2b5o6b4obo4b
2o3b2o3bob4o$66bo12b5o5b4o3bo3b2o6bo10b2obobob2o2b4obo2bo2b2o2bobobob
6obo5b4o$2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o15bo2b
o4bo7bo4b3ob2obo3bo21bo3bo2b2o3bo5bo3bob2o3bo$3b2obo2b2o4b2obo2b2o4b2o
bo2b2o4b2obo2b2o4b2obo2b2o4b2ob3o9b2o5bo7b2ob2ob2o4bo3b2o2b3obo14b2o2b
obo7b2o5b4obo4b2o$2bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo15bobo5b2o9b2obo8bo
bo4bo29b2o9b2o4bobo$79bo8bo8b2obo8b2o46bo6bo!

This is the largest of these wicks that can be handled by qfind. This particular backend was found with a width-10 gutter search. The analogous width-10 odd-symmetric search did not find a solution. There are no doubt shorter solutions at larger widths.
-Matthias Merzenich
Sokwe
Moderator
 
Posts: 1334
Joined: July 9th, 2009, 2:44 pm

Re: Spaceship Discussion Thread

Postby calcyman » September 13th, 2018, 7:22 pm

calcyman wrote:
HartmutHolzwart wrote:Doesn't work for long:


If someone can find a glider collision that rephases a single component (it can have arbitrarily high repeat-time) in-place, then we can add an assembly of high-period c/2 rakes to incrementally transform the constant-phase wick into the alternating-phase wick, yielding a [pseudo-period] c/2 wickstretcher of the alternating-phase wick.

Then, we actually would obtain a legitimate growing spaceship.


Good news: I entered the following configuration into GRILLS:

x = 391, y = 30, rule = Grills
40.G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$40.
G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$16.H
23.G25.I23.G25.J23.G25.K23.G25.L23.G25.M23.G25.N23.G25.O23.G$16.F23.G
25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G$16.F23.G25.F
23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G$40.G49.G49.G49.G
49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$36A4.G9.36A4.G9.36A
4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$36A4.G9.36A4.G9.36A4.G9.
36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$2A32C2A4.G9.2A32C2A4.G9.2A32C
2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G$2A
32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G
9.2A32C2A4.G9.2A32C2A4.G$2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A
4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G$2A32C2A4.G9.2A32C
2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A
32C2A4.G$2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.
2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G$2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G
9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G$36A4.G9.
2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.2A32C2A4.
G9.36A4.G$3AB5AB5AB5AB5AB5AB2A4.G9.4AB5AB5AB5AB5AB5ABA4.G9.2A32CAB4.G
9.BA32C2A4.G9.AB32C2A4.G9.2A32C2A4.G9.2A32C2A4.G9.4AB5AB5AB5AB5AB5ABA
4.G$4A2B4A2B4A2B4A2B4A2B4A2B4.G9.BAB2A2BAB2A2BAB2A2BAB2A2BAB2A2BAB2AB
4.G9.2B4A2B4A2B4A2B4A2B4A2B4A4.G9.AB32CBA4.G9.2A32C2A4.G9.BA32CBA4.G
9.2A32C2B4.G9.BAB2A2BAB2A2BAB2A2B4A2BAB2A2BAB2AB4.G$A2BA2BA2BA2BA2BA
2BA2BA2BA2BA2BA2BA2B4.G9.B2A4B2A4B2A4B2A4B2A4B2A3B4.G9.2BA2BA2BA2BA2B
A2BA2BA2BA2BA2BA2BA2BA4.G9.3B2A4B2A4B2A4B2A4B2A4B2AB4.G9.BA32CAB4.G9.
AB32CBA4.G9.AB32C2B4.G9.B2A4B2A4B2A4BA2BA2B2A4B2A3B4.G$36A4.G9.36A4.G
9.36A4.G9.36A4.G9.36A4.G9.2A32C2A4.G9.36A4.G9.36A4.G$36B4.G9.36B4.G9.
36B4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G$36A4.G9.36A4.G9.36A4.G
9.36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$36B4.G9.36B4.G9.36B4.G9.36B
4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G$40.G49.G49.G49.G49.G49.G49.G49.G$
40.G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$40.
G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G!


and it spat out a solution:

x = 391, y = 30, rule = Grills
40.G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$40.
G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$16.H
23.G25.I23.G25.J23.G25.K23.G25.L23.G25.M23.G25.N23.G25.O23.G$16.F23.G
25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G$16.F23.G25.F
23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G25.F23.G$40.G49.G49.G49.G
49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G$36A4.G9.36A4.G9.36A
4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$36A4.G9.36A4.G9.36A4.G9.
36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$5AB4AB7ABAB2AB2A2B2AB5A4.G9.
19ABAB14A4.G9.7AB12AB15A4.G9.6A2B13AB7A2B5A4.G9.7AB9AB4AB7A2B4A4.G9.
16A2BA2BA2B6ABAB3A4.G9.16A2BA2B2AB12A4.G9.17AB2AB15A4.G$6AB2AB2AB4AB
2ABAB7AB5A4.G9.6A3B3AB3AB3AB8A2B5A4.G9.5A2BAB4ABABA2B2A2B5A4B4A4.G9.
8AB7A3B3A2B7A2B3A4.G9.7AB8A8B6A3B3A4.G9.16ABA2B4AB11A4.G9.13A2B3A3B3A
B11A4.G9.12A4B5ABA2B11A4.G$4ABABA3BA3BA3BAB8ABA2B3A4.G9.3A2BA3B3ABABA
BA2BABA2B3A2BA2B3A4.G9.3A4BAB8ABA2BA2B2A4BA2B3A4.G9.17ABA2B2AB3AB4AB
3A4.G9.13AB2AB3A2BA2B6A2B3A4.G9.12A5B7AB2AB2ABAB3A4.G9.12A2B2A3BAB2AB
ABAB8A4.G9.12A3B2AB3AB2ABA2B8A4.G$3A3B3ABAB2ABAB6A3BABA2B2AB2A4.G9.3A
B10AB8A5B5AB2A4.G9.5AB7ABAB7AB6A2B4A4.G9.2AB9A3B3A2BABAB3AB8A4.G9.12A
3B3A2B2AB3A3B7A4.G9.11AB2A2B3A2BAB3ABAB7A4.G9.11AB7A2B6A3B6A4.G9.11AB
4AB3AB3AB2ABAB6A4.G$3AB2A3B2A2B2ABA3B2ABAB2A3BABAB2A4.G9.2A2B2A3B2AB
5A3BAB4A2B3AB4A4.G9.2A2B2ABAB3A2B5ABAB7A4B3A4.G9.5A2B5AB2AB11AB4AB3A
4.G9.11A2B2AB6AB4A2B7A4.G9.11A2B2A2B3A2B7AB6A4.G9.11A3B2ABAB6AB2A2B6A
4.G9.11A2B5ABAB6ABAB6A4.G$2AB2AB5ABA3B2AB2A4B3AB2AB4A4.G9.6A2B3ABA7BA
2BAB2A4BAB3A4.G9.6ABAB3ABA2B3ABABAB2A6B4A4.G9.12ABAB3A2BAB4A2B4AB3A4.
G9.14A2BABA2B4AB2AB7A4.G9.14AB3A7BABAB7A4.G9.15AB3AB16A4.G9.12AB23A4.
G$36A4.G9.15AB5ABAB12A4.G9.18ABA2BAB3AB8A4.G9.14AB2A3B3A2BA2B8A4.G9.
15A2B2ABABA2B2AB8A4.G9.21A5B10A4.G9.36A4.G9.36A4.G$3AB5AB5AB5AB5AB5AB
2A4.G9.4AB5AB5AB5AB5AB5ABA4.G9.5AB5AB3A3B3A2BAB4AB5AB4.G9.B5AB5AB3A2B
3A2BA2B4AB5A4.G9.AB5AB5AB2A2BA2BABAB6AB4A4.G9.2AB5AB5AB2ABAB4A4B4AB3A
4.G9.3AB5AB5AB5AB5A2B4AB2A4.G9.4AB5AB5AB5AB5AB5ABA4.G$4A2B4A2B4A2B4A
2B4A2B4A2B4.G9.BAB2A2BAB2A2BAB2A2BAB2A2BAB2A2BAB2AB4.G9.2B4A2B4A2B4A
2B4A2B4A2B4A4.G9.A2BAB2A2BAB2AB5AB6ABAB2A2BABA4.G9.2A2B4A2B4ABAB2ABA
2B3A2B4A2B2A4.G9.B2A2BAB2A2B3ABAB5ABAB2A2BAB2A2BA4.G9.4A2B4A2B4A2B3AB
A2B4AB4A2B4.G9.BAB2A2BAB2A2BAB2A2B4A2BAB2A2BAB2AB4.G$A2BA2BA2BA2BA2BA
2BA2BA2BA2BA2BA2BA2B4.G9.B2A4B2A4B2A4B2A4B2A4B2A3B4.G9.2BA2BA2BA2BA2B
A2BA2BA2BA2BA2BA2BA2BA4.G9.3B2A4B2A4B2A4B2A4B2A4B2AB4.G9.BA2BA2BA2BA
4B3A3B3A4BA2BA2BAB4.G9.A4B2A4BA4B2A4B3ABA2B2A4BA4.G9.A2BA2BA2BA2BA2BA
2BA5B2A4BA2BA2B4.G9.B2A4B2A4B2A4BA2BA2B2A4B2A3B4.G$36A4.G9.36A4.G9.
36A4.G9.36A4.G9.36A4.G9.16AB5AB13A4.G9.36A4.G9.36A4.G$36B4.G9.36B4.G
9.36B4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G$36A4.G9.36A4.G9.36A
4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G9.36A4.G$36B4.G9.36B4.G9.36B4.G9.
36B4.G9.36B4.G9.36B4.G9.36B4.G9.36B4.G$40.G49.G49.G49.G49.G49.G49.G
49.G$40.G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.
G$40.G49.G49.G49.G49.G49.G49.G49.G$40.G49.G49.G49.G49.G49.G49.G49.G!


Can anyone engineer this reaction out of a glider collision?

EDIT: For simplicity, here's the B3/S23 pattern; look at generation 7 of the pattern below:

x = 189, y = 41, rule = B3/S23
8bo$7b4o6bobo$6bob4o4bo4b2o$5b2o7bobo$6b2o3b4o6b2o$7bob2o5b5o$3bo5b3ob
ob2o2bo$bo5b2o4bobobo$o11b2o51bo4bo7bobo2bo2b2o2bo$o6bo58bo2bo2bo4bo2b
obo7bo$6o4b2o52bobob3ob3ob3obo8bob2o73b2o$7bo2b2o51b3o3bobo2bobo6b3obo
b2o2bo71bo2bo2bo$6bo56bo2b3o2b2o2bob3o2bobo2b3obobo72bob4o$5bo3bo52bo
2bo5bob3o2bo2b4o3bo2bo71b4o7b2o$4bo3bo154bo3bob2obo2bo5bo$3bo4b2o5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo12b
2ob2ob2obob2obobo$3bo2b3ob2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b
2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o5b5o8bo2bob2o2bo
$3bo3b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2obobo2b3ob2ob4o4bo3b2o2b2o$4bo153bobobo3b2o5b4ob3o2b2o
2bo$5b155obobo5bobobo4bobobo2bobo$161b4o3b2obobob3o4b4ob2o$5b155obobo
5bobobo4bobobo2bobo$4bo153bobobo3b2o5b4ob3o2b2o2bo$3bo3b2ob2ob2ob2ob2o
b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2obobo
2b3ob2ob4o4bo3b2o2b2o$3bo2b3ob2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b
2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o5b5o8bo2bob
2o2bo$3bo4b2o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo5bo5bo5bo12b2ob2ob2obob2obobo$4bo3bo154bo3bob2obo2bo5bo$5bo3bo
153b4o7b2o$6bo159bob4o$7bo2b2o153bo2bo2bo$6o4b2o154b2o$o6bo$o11b2o$bo
5b2o4bobobo$3bo5b3obob2o2bo$7bob2o5b5o$6b2o3b4o6b2o$5b2o7bobo$6bob4o4b
o4b2o$7b4o6bobo$8bo!
What do you do with ill crystallographers? Take them to the mono-clinic!
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calcyman
 
Posts: 1765
Joined: June 1st, 2009, 4:32 pm

Re: Spaceship Discussion Thread

Postby calcyman » September 13th, 2018, 8:00 pm

This one leaves another tick before interacting:

x = 190, y = 41, rule = B3/S23
8b2o$12bo$6b2o4bo3b3o$6bo2b2o4bo$6bob2ob5obob4o$7b2obo6b6o$8bo3b2o2bo
3b2o$9b4obobo$b2o5b2o3b3o43bob2o2bo5bob2o6bobo2bob2o$2ob3o6b2o46b3o3b
2o2bo2b3ob2o3b3o2b2o$b5obo3b2o46bo2b2o3bo8b2ob2ob2o2bo2bo77b2o$2b6o3b
2o49b3o4b3o2bo2bo2b3o2bo3b2o75bo2bo2bo$7bo3bo48bo3b2o2b2ob2o2b3obobo2b
4obo77bob4o$6bo54bobo3bo3bo3bo3b2obo2b2o3bo73b4o7b2o$5bo3bo154bo3bob2o
bo2bo5bo$4b2o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo5bo5bo5bo5bo10b3ob2ob2obob2obobo$3b3obo4b2obo2b2obo2b2obo2b2obo
2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2o
bo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2o4bo12bo2bob2o2bo
$4b2obobob3o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b
4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4ob3o6b2ob3o4bo3b2o2b2o$5b2o154bo
3b4obo3b4obobo2b2o2bo$6b155o4bo2bobo3bo4bobobo2bobo$162bo2bo3b2obobo2b
3o3bo2bob2o$6b155o4bo2bobo3bo4bobobo2bobo$5b2o154bo3b4obo3b4obobo2b2o
2bo$4b2obobob3o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b
4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4ob3o6b2ob3o4bo3b2o2b2o$3b3obo
4b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2o
bo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b
2obo2b2o4bo12bo2bob2o2bo$4b2o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo10b3ob2ob2obob2obobo$5bo3bo154bo3bob
2obo2bo5bo$6bo157b4o7b2o$7bo3bo155bob4o$2b6o3b2o153bo2bo2bo$b5obo3b2o
154b2o$2ob3o6b2o$b2o5b2o3b3o$9b4obobo$8bo3b2o2bo3b2o$7b2obo6b6o$6bob2o
b5obob4o$6bo2b2o4bo$6b2o4bo3b3o$12bo$8b2o!
What do you do with ill crystallographers? Take them to the mono-clinic!
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calcyman
 
Posts: 1765
Joined: June 1st, 2009, 4:32 pm

Re: Spaceship Discussion Thread

Postby calcyman » September 13th, 2018, 8:17 pm

Another tick and another row further:

x = 190, y = 39, rule = B3/S23
7b2o8bo$6b2o3bo4b2o$5b2o2b2o4bo3b3o$6bo4b5obo4bo$10bo4bobo$7b2o3b2ob2o
bo3bo$10b2o4bo46bo3bo12b2obo$5o3b2o5bo39bobobobo2bo4bob2o3bob5o2bo$o4b
2obo2bo43bobo3bob3obob2o3b4o3bob2obo$o6bo51b3o4bo2bo2b2o4bob2obo83b2o$
bo5b2obo44bo3bo5b2obob2o2bobo5bo3bo79bo2bo2bo$3b2o2bo3b2o43bo2b2ob4obo
bo2bob4ob3obo83bob4o$6bo157b4o7b2o$4b3o157bo3bob2obo2bo5bo$3bo8bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo10b
2ob2ob2obob2obobo$3bo4bobo2b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o
4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2ob2o13bo2bob2o
2bo$3bo3b2o2bob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob3o3bob6o4bo3b2o2b2o$4bo156bo3b2o3bobob4obobo2b
2o2bo$5b157o2b2o2bobo3bo4bo3bo2bobo$161bo2b3obobo3b2o3bo3b4ob2o$5b157o
2b2o2bobo3bo4bo3bo2bobo$4bo156bo3b2o3bobob4obobo2b2o2bo$3bo3b2o2bob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob3o3bob6o4bo3b2o2b2o$3bo4bobo2b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o
4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2ob2o13b
o2bob2o2bo$3bo8bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo5bo5bo10b2ob2ob2obob2obobo$4b3o157bo3bob2obo2bo5bo$6bo
157b4o7b2o$3b2o2bo3b2o154bob4o$bo5b2obo155bo2bo2bo$o6bo159b2o$o4b2obo
2bo$5o3b2o5bo$10b2o4bo$7b2o3b2ob2obo3bo$10bo4bobo$6bo4b5obo4bo$5b2o2b
2o4bo3b3o$6b2o3bo4b2o$7b2o8bo!


Surely someone *must* be able to engineer this from a glider collision?


EDIT: Much better still, another tick of predecessorness, and the ash stabilises safely into a block:

x = 191, y = 39, rule = B3/S23
7b3o7b2o$6bo3b2o5b3obo$6bo4bo2bobob2ob2o$6b2o2bob3obo2bob2o$8bo9b2o$
10b2obob2o$2b3o3bo2b3obob2o54b2o5bob2o2bobobobobobo2bobo$b6ob3obo60bo
2bobo4bo2b2o9b2o$2ob5ob2o61bob4o3b5obobo2bo2bo2bo2bo$b2o7bo60bo3bo2bo
2b2o2bo3bo3bo4bo69b2o$7b3o2bo59bo2bob2o2bo2bobob2obob2ob2o2bo66bo2bo2b
o$7b3o2bo60bobobob2obob2o4bobob2o72bob4o$4bo2b2o156b4o7b2o$5b3o157bo3b
ob2obo2bo5bo$4bobo7bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo5bo5bo5bo5bo5bo5bo9b2ob2ob2obob2obobo$3b3o2b3obo2b2obo2b2obo2b2o
bo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b
2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2bobobo12bo
2bob2o2bo$4b2o2b3o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o
2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b3o3bo2b3ob2ob2o4bo3b2o2b
2o$5b2o158bobobo3bob4ob2o3b2o2bo$6b155ob2o7bo8bo2b2o2bobo$163b2o2bobob
2ob3o2b3ob2o2bob2o$6b155ob2o7bo8bo2b2o2bobo$5b2o158bobobo3bob4ob2o3b2o
2bo$4b2o2b3o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b
4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b3o3bo2b3ob2ob2o4bo3b2o2b2o$3b
3o2b3obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b
2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo
2b2obo2b2obo2bobobo12bo2bob2o2bo$4bobo7bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo9b2ob2ob2obob2obobo$5b3o
157bo3bob2obo2bo5bo$4bo2b2o156b4o7b2o$7b3o2bo155bob4o$7b3o2bo154bo2bo
2bo$b2o7bo157b2o$2ob5ob2o$b6ob3obo$2b3o3bo2b3obob2o$10b2obob2o$8bo9b2o
$6b2o2bob3obo2bob2o$6bo4bo2bobob2ob2o$6bo3b2o5b3obo$7b3o7b2o!
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Re: Spaceship Discussion Thread

Postby calcyman » September 14th, 2018, 7:13 am

I repaired an efficiency bug in GRILLS, and now it runs much faster. A 7-minute run on my old laptop gave an even wider separation: three blank rows and a relatively clean interaction:

Code: Select all
x = 191, y = 41, rule = B3/S23
8bo$7b4o6bobo$6bob4o4bo4b2o$5b2o7bobo$6b2o3b4o6b2o$7bob2o5b5o$3bo5b3ob
ob2o2bo58b2o2bo3bo5b2o$bo5b2o4bobobo58bo4bo2bo5bo4b2obobo$o11b2o63bobo
b3o2bobo2b3o4bo2bo$o6bo68bo3b2o7b2o2b4o3bo$6o4b2o66bo3bo4bobo2bo2bobo
2bobo65b2o$7bo2b2o64b4o3b3ob4ob3o2b2obo66bo2bo2bo$6bo161bob4o$5bo3bo
155b4o7b2o$4bo3bo156bo3bob2obo2bo5bo$3bo4b2o5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo14b2ob2ob2obob2obobo$3bo
2b3ob2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b
2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o3b2obo13bo2bob2o2bo$3bo3b2ob2ob2ob2o
b2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
4obobob5ob3o4bo3b2o2b2o$4bo155bob3o2bobobobob4ob3o2b2o2bo$5b155o2b2o2b
o4bobo4bo4bo3bobo$164bo6b2o2bo3bobo3b3ob2o$5b155o2b2o2bo4bobo4bo4bo3bo
bo$4bo155bob3o2bobobobob4ob3o2b2o2bo$3bo3b2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob
2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob2ob4obobob5ob3o4bo
3b2o2b2o$3bo2b3ob2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b
2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o3b2obo13bo2bob2o2bo$3bo
4b2o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo
5bo5bo14b2ob2ob2obob2obobo$4bo3bo156bo3bob2obo2bo5bo$5bo3bo155b4o7b2o$
6bo161bob4o$7bo2b2o155bo2bo2bo$6o4b2o156b2o$o6bo$o11b2o$bo5b2o4bobobo$
3bo5b3obob2o2bo$7bob2o5b5o$6b2o3b4o6b2o$5b2o7bobo$6bob4o4bo4b2o$7b4o6b
obo$8bo!
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Re: Spaceship Discussion Thread

Postby KittyTac » September 14th, 2018, 12:54 pm

What is GRILLS?
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Re: Spaceship Discussion Thread

Postby calcyman » September 14th, 2018, 4:20 pm

KittyTac wrote:What is GRILLS?


https://gitlab.com/apgoucher/metasat/blob/master/grills.py

It's similar to Macbi's LLS (converting a general GoL problem into a SAT instance), but only supports asymmetric and (implicitly) gutter-symmetric configurations in B3/S23. Instead of using bespoke text files as input, it runs as a Golly script and operates on the current universe as an input; if it finds a solution, the current universe is updated to reflect the solution.

The processing pipeline looks like the following:

  1. Compile the GRILLS pattern into an intermediate representation (the same one used by ikpx) comprising a map from (x, y, t) coordinates to variable names.
  2. Optimise this intermediate representation.
  3. Compile the intermediate representation into a SAT problem.
  4. Optimise this SAT problem (using lingeling) for a prespecified duration.
  5. Separate this SAT problem (using march_cc) into smaller subproblems.
  6. Solve the subproblems (using iglucose).

The 'optimise' steps may exit early if they solve the problem.

I'm intending to make the frontend even more user-friendly by allowing a LifeHistory input to be run for several generations to create an 'outline' GRILLS pattern with all of the annoying origin annotations in place.

Incidentally, for this wick problem, we need to synthesise two different reactions in order to assemble the alternating wick:

x = 192, y = 41, rule = B3/S23
8b2o$12bo$6b2o4bo3b3o$6bo2b2o4bo$6bob2ob5obob4o$7b2obo6b6o$8bo3b2o2bo
3b2o$9b4obobo61bobobo3bobo6bo2bobo$b2o5b2o3b3o61b2o5bo7b3o6b2o$2ob3o6b
2o64b4o2bo3bob2o4b3ob2o$b5obo3b2o64bobob5ob2o4bo4b2obo67b2o$2b6o3b2o
65b3o3b2ob2ob6ob4obo65bo2bo2bo$7bo3bo66b2o5bo3b2o3bo74bob4o$6bo159b4o
7b2o$5bo3bo156bo3bob2obo2bo5bo$4b2o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo13b2ob2ob2obob2obobo$3b3obo4b
2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo
2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2o
bo2b2o3bo2bo12bo2bob2o2bo$4b2obobob3o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o
2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4obo3bob
4ob6o4bo3b2o2b2o$5b2o154bo3bo4bobo3b4ob3o2b2o2bo$6b155ob2o2bo5bobobo2b
o5bo2bobo$165b2o4b2ob2o3b2o2bobo2bob2o$6b155ob2o2bo5bobobo2bo5bo2bobo$
5b2o154bo3bo4bobo3b4ob3o2b2o2bo$4b2obobob3o2b4o2b4o2b4o2b4ob2ob2o2b4o
2b4o2b4ob2ob2o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o2b4o
2b4obo3bob4ob6o4bo3b2o2b2o$3b3obo4b2obo2b2obo2b2obo2b2obo2b2o4b2obo2b
2obo2b2obo2b2o4b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b
2obo2b2obo2b2obo2b2obo2b2obo2b2obo2b2o3bo2bo12bo2bob2o2bo$4b2o5bo5bo5b
o5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo13b
2ob2ob2obob2obobo$5bo3bo156bo3bob2obo2bo5bo$6bo159b4o7b2o$7bo3bo32bobo
bobo2b2ob2obob2o3bo4bobo95bob4o$2b6o3b2o30bo2bo2b3o3b2o2bo3b2obo2b3obo
94bo2bo2bo$b5obo3b2o36bo2bobob2o5bobo2b2o99b2o$2ob3o6b2o30b2o5b3ob2obo
b5obob2o2b2o$b2o5b2o3b3o29bo2b3o3bobo2bo2bobobo$9b4obobo28bobob2obobob
o4bo6bob2ob2o$8bo3b2o2bo3b2o$7b2obo6b6o23bo$6bob2ob5obob4o$6bo2b2o4bo$
6b2o4bo3b3o$12bo$8b2o!
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Re: Spaceship Discussion Thread

Postby dvgrn » September 14th, 2018, 6:34 pm

calcyman wrote:Surely someone *must* be able to engineer this from a glider collision?

I like your optimism, but at first glance this looks to me like a couple of 120-bit space dust problems -- and we still find 40-bit space dust problems to be pretty tricky.

Also, in this case we only have five of the eight input directions to work from, and a lot of useful lanes in the two parallel-to-wick directions won't be available.

I certainly can't say confidently that there's no way to build some wacky big still lifes, and then crash several somethings into them to get those two patching reactions... but looking at those two reactions sure doesn't give me any ideas about where to start.

If I had to tackle the problem I'd probably try putting a few months of effort into better heuristics for a backtracking algorithm, to try to keep moving the search area farther away from the wick while leaving behind small still lifes whenever that was convenient. Not sure even optimum application of SAT solvers can keep that search area under control, though!

Anyway, it's really quite impressive that there's a way to correct the wick at all. This is one of the closest matches I've seen to the old Dave Buckingham paraphrase about "building a Formula-1 race car whilst it's on the track and travelling at 200mph".

Extrementhusiast and Kazyan and others have built quite a few Conway's Life race cars now, but they mostly start moving only when the construction is finished. For modifications to things traveling at any speed I think we're mostly still just applying decals to coasting bicycles, or maybe removing bike trailers (i.e., minstrels)... it takes a steady hand to do that, for sure, but this seems more like replacing one of the spokes in a bike's front wheel while you're still pedaling it.
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Re: Spaceship Discussion Thread

Postby Sokwe » September 15th, 2018, 7:20 am

Here's a slightly shorter backend for the simplest c/5 orthogonal wick:
x = 67, y = 19, rule = B3/S23
53bobo$52bo2bo$50b2o$58bo$43b3o5bo3bob2ob3o$46bobo3b2o7b4o$2bo5bo5bo5b
o5bo5bo5bo3bo3bob2o4bo2b2o5bobo$3b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo
11bo6b2o2b2o$2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2ob3o12b4o2bo$56bo4b2o$
2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2ob3o12b4o2bo$3b2obo2b2o4b2obo2b2o4b
2obo2b2o4b2obo11bo6b2o2b2o$2bo5bo5bo5bo5bo5bo5bo3bo3bob2o4bo2b2o5bobo$
46bobo3b2o7b4o$43b3o5bo3bob2ob3o$58bo$50b2o$52bo2bo$53bobo!


I have updated the jslife-moving collection to reflect recent discoveries. This update also finally adds the 2-engine cordership. The collection should now be entirely up-to-date as of this post.
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Re: Spaceship Discussion Thread

Postby dvgrn » September 15th, 2018, 3:16 pm

Sokwe wrote:I have updated the jslife-moving collection to reflect recent discoveries. This update also finally adds the 2-engine cordership. The collection should now be entirely up-to-date as of this post.

What exactly counts as "up-to-date", and if I have a candidate pattern that I want to suggest adding, what's the preferred way to contribute -- should I put together a GitHub pull request, or would logging an issue for the repository be okay? Maybe a README.md could be added to point people in the right direction?

I just added a couple of variants of simsim314's alternate 4-engine Cordership to the LifeWiki. It's used in the infinite Corderships gun, so it seems like it might be famous enough to be included in jslife-moving.

Seems like there are too many Cordership variants to collect them all. The LifeWiki's solution seems to have been to document all the Corderships that were record-breakers at any point in any category (which I guess maybe includes records in the "N-in-a-row" subcategory).

ship-c12d-small.rle can probably be removed. The comments say it's the smallest by population, but that's out of date now thanks to the 2-engine Cordership, and it's already included in ships-c12d.rle as #5.2.
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Re: Spaceship Discussion Thread

Postby Sokwe » September 15th, 2018, 5:14 pm

dvgrn wrote:What exactly counts as "up-to-date"?

The way I was using it, it's when I am personally satisfied that all of the interesting known technology is included. I should probably say that everything except the c/12 diagonal section is up-to-date. I'm not satisfied with that section, but also not ambitious enough to update it. With c/12 technology, it's hard to separate the wheat from the chaff, so I've left it alone. I'm open to any proposals for that section.

dvgrn wrote:if I have a candidate pattern that I want to suggest adding, what's the preferred way to contribute -- should I put together a GitHub pull request, or would logging an issue for the repository be okay? Maybe a README.md could be added to point people in the right direction?

If it's a minor change, then it can be mentioned in an issue and I'll get around to adding it at some point. If it's a more substantial addition, like a collection of all known p96 2-engine puffers, I would hope someone else would do the necessary legwork. I can add people as collaborators if need be. I agree that I should add a readme.

dvgrn wrote:ship-c12d-small.rle can probably be removed. The comments say it's the smallest by population, but that's out of date now thanks to the 2-engine Cordership, and it's already included in ships-c12d.rle as #5.2.

Nice catch. I'll remove it later today. I'll also add the 13-engine Cordership for its historical significance.
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Re: Spaceship Discussion Thread

Postby HartmutHolzwart » September 15th, 2018, 6:31 pm

Could you give the c/6 ants wicks a try?

x = 26, y = 22, rule = B3/S23
3$3b2o3b2o3b2o3b2o3b2o$b2o3b2o3b2o3b2o3b2o$2b3o2b3o2b3o2b3o2b3o2$26o2$
26o2$2b3o2b3o2b3o2b3o2b3o$b2o3b2o3b2o3b2o3b2o$3b2o3b2o3b2o3b2o3b2o!


Thanks,
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Re: Spaceship Discussion Thread

Postby Sokwe » September 16th, 2018, 2:54 am

HartmutHolzwart wrote:Could you give the c/6 ants wicks a try?

I tried all of the variants with qfind up to a search-width of 10, but there wasn't even a long extension, much less a complete back end. Unfortunately, qfind cannot currently perform searches at widths higher than 10. Incorporating Tomas Rokicki's updates to zfind should allow qfind to search widths 11 or 12, but I have not yet made those modifications.
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Re: Spaceship Discussion Thread

Postby HartmutHolzwart » September 19th, 2018, 4:34 pm

The one c/5 wick end combines nicely with a known c/5 grey ship part:

x = 193, y = 120, rule = B3/S23
6$82b5o20b5o20b5o$85bobo22bobo22bobo$81bo6bo17bo6bo17bo6bo$81bo3bo20bo
3bo20bo3bo$82b2obo21b2obo21b2obo$85bob2o21bob2o21bob2o$83b2o23b2o23b2o
$84bo24bo24bo$82b2o23b2o23b2o$81bobo22bobo22bobo$81bob2o21bob2o21bob2o
$82bobo22bobo22bobo$84bo24bo24bo2$84bo24bo24bo$82bobo22bobo22bobo$81bo
b2o21bob2o21bob2o$81bobo22bobo22bobo$82b2o23b2o23b2o$84bo24bo24bo$83b
2o23b2o23b2o$85bob2o21bob2o21bob2o$82b2obo21b2obo21b2obo$81bo3bo20bo3b
o20bo3bo$81bo6bo17bo6bo17bo6bo$85bobo22bobo22bobo$82b5o20b5o20b5o$88bo
24bo24bo$87bobo22bobo22bobo$86b2o23b2o23b2o$89bo24bo24bo$91b2o4bo18b2o
4bo18b2o4bo$88b2ob2o3bo2bo13b2ob2o3bo2bo13b2ob2o3bo2bo$88b2o4b2o3bo13b
2o4b2o3bo13b2o4b2o3bo$89b2o3bo4bo14b2o3bo4bo14b2o3bo4bo$94bo4bo19bo4bo
19bo4bo$96b4o21b4o21b4o4$83b2o2b2o6bo2bo3b2o4b2o2b2o6bo2bo3b2o4b2o2b2o
6bo2bo3b2o4b2o2b2o$82b7o5b2ob3o2b2o3b7o5b2ob3o2b2o3b7o5b2ob3o2b2o3b7o$
82bo12bo3b2o6bo12bo3b2o6bo12bo3b2o6bo$3bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5b
o5bo5bo5bobo9bob2ob2o6bobo9bob2ob2o6bobo9bob2ob2o6bobo13b3ob2o$4b2obo
2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2o5bob2o4bo4b
4o2b2o4bob2o4bo4b4o2b2o4bob2o4bo4b4o2b2o4bob2o4b2o4b2o3bo$b2ob2o2b4ob
2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2ob4o2b3o2bo3bo6b
2o2b3o2b3o2bo3bo6b2o2b3o2b3o2bo3bo6b2o2b3o2b3ob3o5bobobo$82bo3bo2bo2bo
bo3bo8bo3bo2bo2bobo3bo8bo3bo2bo2bobo3bo8bo3bo6bo2b3ob2o$b82o2b6o2b3o2b
10o2b6o2b3o2b10o2b6o2b3o2b10o2b9o2bo2bo2bo$169bo2bo5bo$b168o4b5o2$b
168o4b5o$169bo2bo5bo$b82o2b6o2b3o2b10o2b6o2b3o2b10o2b6o2b3o2b10o2b9o2b
o2bo2bo$82bo3bo2bo2bobo3bo8bo3bo2bo2bobo3bo8bo3bo2bo2bobo3bo8bo3bo6bo
2b3ob2o$b2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob2ob2o2b4ob
2ob2ob4o2b3o2bo3bo6b2o2b3o2b3o2bo3bo6b2o2b3o2b3o2bo3bo6b2o2b3o2b3ob3o
5bobobo$4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b2obo2b2o4b
2o5bob2o4bo4b4o2b2o4bob2o4bo4b4o2b2o4bob2o4bo4b4o2b2o4bob2o4b2o4b2o3bo
$3bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bo5bobo9bob2ob2o6bobo9bob2ob2o6b
obo9bob2ob2o6bobo13b3ob2o$82bo12bo3b2o6bo12bo3b2o6bo12bo3b2o6bo$82b7o
5b2ob3o2b2o3b7o5b2ob3o2b2o3b7o5b2ob3o2b2o3b7o$83b2o2b2o6bo2bo3b2o4b2o
2b2o6bo2bo3b2o4b2o2b2o6bo2bo3b2o4b2o2b2o4$96b4o21b4o21b4o$94bo4bo19bo
4bo19bo4bo$89b2o3bo4bo14b2o3bo4bo14b2o3bo4bo$88b2o4b2o3bo13b2o4b2o3bo
13b2o4b2o3bo$88b2ob2o3bo2bo13b2ob2o3bo2bo13b2ob2o3bo2bo$91b2o4bo18b2o
4bo18b2o4bo$89bo24bo24bo$86b2o23b2o23b2o$87bobo22bobo22bobo$88bo24bo
24bo$82b5o20b5o20b5o$85bobo22bobo22bobo$81bo6bo17bo6bo17bo6bo$81bo3bo
20bo3bo20bo3bo$82b2obo21b2obo21b2obo$85bob2o21bob2o21bob2o$83b2o23b2o
23b2o$84bo24bo24bo$82b2o23b2o23b2o$81bobo22bobo22bobo$81bob2o21bob2o
21bob2o$82bobo22bobo22bobo$84bo24bo24bo2$84bo24bo24bo$82bobo22bobo22bo
bo$81bob2o21bob2o21bob2o$81bobo22bobo22bobo$82b2o23b2o23b2o$84bo24bo
24bo$83b2o23b2o23b2o$85bob2o21bob2o21bob2o$82b2obo21b2obo21b2obo$81bo
3bo20bo3bo20bo3bo$81bo6bo17bo6bo17bo6bo$85bobo22bobo22bobo$82b5o20b5o
20b5o!


Unfortunately we still lack a further connection from that part to others. If we find a descending part that combines then we can a wickend for an arbitrarily wide strip.
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Re: Spaceship Discussion Thread

Postby wildmyron » September 20th, 2018, 12:22 am

Sokwe wrote:
HartmutHolzwart wrote:Could you give the c/6 ants wicks a try?

I tried all of the variants with qfind up to a search-width of 10, but there wasn't even a long extension, much less a complete back end. Unfortunately, qfind cannot currently perform searches at widths higher than 10. Incorporating Tomas Rokicki's updates to zfind should allow qfind to search widths 11 or 12, but I have not yet made those modifications.

Two phases from the only partial I found at width 11.
x = 50, y = 25, rule = B3/S23
4bobobobobobo20b2obobob2o$8bobo23bobobobobobo$5bo2bobo2bo20bobobobobob
o$5b2obobob2o24bobo$4bobobobobobo20bo2bobo2bo$4bobobobobobo20b2obobob
2o$8bobo23bobobobobobo$5bo2bobo2bo20bobobobobobo$5b2obobob2o24bobo$4bo
bobobobobo21bobobobo$4bobobobobobo20b2obobob2o$8bobo23b2o2bobo2b2o$5bo
7bo20bo3bobo3bo$2b3ob2o3b2ob3o16b2o2b2ob2o2b2o$b3o2bo5bo2b3o12bob2obob
2ob2obob2obo$2obo11bob2o11b2o3b3obob3o3b2o$4bo2bobobo2bo18bo5bo5bo$9bo
21bo3b2o5b2o3bo$4b4obob4o15bob2obo3bo3bob2obo$3o4bo3bo4b3o10b2o4b2o2bo
2b2o4b2o$bo3bo7bo3bo11b2obo13bob2o$2bo3b2o3b2o3bo13bo3b2o7b2o3bo$o3bo
3b3o3bo3bo11bo2b3o7b3o2bo$o3b2ob5ob2o3bo11bo2bo11bo2bo$6b2o3b2o!

This width 11 result came from ntzfind. Even though I had to constrain the search (because otherwise it searches through the same extensions at every possible length of the wick up to the search limit) I don't believe there's a completion at this width.
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Re: Spaceship Discussion Thread

Postby Sokwe » September 28th, 2018, 6:04 am

I ran a total-width 17 (search-width 9) odd-symmetric qfind search for a 2c/10 growing ship backend. Unfortunately it didn't find anything. Here is the longest partial result:
x = 39, y = 76, rule = B3/S23
8bo6bo7bo6bo$7b3o4b3o5b3o4b3o$2bo4bob2o2b2o2bo3bo2b2o2b2obo4bo$b3o4b3o
2b3obo3bob3o2b3o4b3o$2obo4b3obo2bob2ob2obo2bob3o4bob2o$3o5b2o19b2o5b3o
$b2o5b2obo2b3o5b3o2bob2o5b2o$8b2o2b2o2bobobobo2b2o2b2o$4b2o2b3o6b2ob2o
6b3o2b2o$8b3o17b3o$8b2o8bobo8b2o$18bobo$16bo5bo$17b2ob2o$17b2ob2o2$18b
obo$18bobo$16bo5bo$17b2ob2o$17b2ob2o2$18bobo$18bobo$16bo5bo$17b2ob2o$
17b2ob2o2$18bobo$18bobo$16bo5bo$17b2ob2o$17b2ob2o2$18bobo$18bobo$16bo
5bo$17b2ob2o$17b2ob2o2$18bobo$16bo5bo$18bobo$13b5o3b5o$13bo11bo$13b3o
7b3o$15b2o5b2o$17bo3bo$15bobo3bobo$15b2o5b2o$15b2o5b2o$15b2obobob2o$
15bobobobobo$19bo$13b3ob2ob2ob3o$17b2ob2o$12bo2bo2bobo2bo2bo$13b2ob3ob
3ob2o$14bob3ob3obo2$15bo7bo$14bo2bo3bo2bo$14b5ob5o$14bo3b3o3bo$16b2obo
b2o$13bo5bo5bo$13b2o3b3o3b2o2$18bobo$15bo3bo3bo$15bobo3bobo$11b3obo3bo
3bob3o$11b2o5bobo5b2o$12b3o2bo3bo2b3o$12bob3o5b3obo$12b4obo3bob4o!

Even with 7 threads, the search took about 2 weeks to complete.
-Matthias Merzenich
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Re: Spaceship Discussion Thread

Postby wildmyron » September 28th, 2018, 6:11 am

wildmyron wrote:
Sokwe wrote:
HartmutHolzwart wrote:Could you give the c/6 ants wicks a try?

I tried all of the variants with qfind up to a search-width of 10, but there wasn't even a long extension, much less a complete back end. Unfortunately, qfind cannot currently perform searches at widths higher than 10. Incorporating Tomas Rokicki's updates to zfind should allow qfind to search widths 11 or 12, but I have not yet made those modifications.

Two phases from the only partial I found at width 11.
<snip rle>

The longest extension I have found so far:
x = 39, y = 54, rule = B3/S23
15bo2bobo2bo$15b2obobob2o$14bobobobobobo$14bobobobobobo$18bobo$15bo2bo
bo2bo$15b2obobob2o$14bobobobobobo$14bobobobobobo$18bobo$15bo2bobo2bo$
15b2obobob2o$14bobobobobobo$14bobobobobobo$18bobo$15bo2bobo2bo$15b2obo
bob2o$14bobobobobobo$14bobobobobobo$18bobo$16bobobobo$15b2obobob2o$14b
2o2bobo2b2o$14bo3bobo3bo$13b2o2b2ob2o2b2o$10bob2obob2ob2obob2obo$10b2o
3b3obob3o3b2o$13bo5bo5bo$11bo3b2o5b2o3bo$10bob2obo3bo3bob2obo$9b2o4b2o
2bo2b2o4b2o$9b2obo13bob2o$10b2o2b2o7b2o2b2o$10bob4o7b4obo$4b2obo8bo5bo
8bob2o$3bo2bobob2ob2o2bo3bo2b2ob2obobo2bo$3b3ob5o5bo3bo5b5ob3o$4bo4b3o
2b2o7b2o2b3o4bo$9bobob3o7b3obobo$4b2obo2bo4bo7bo4bo2bob2o$2bob5o2bo5bo
3bo5bo2b5obo$bob2o6bo5bo3bo5bo6b2obo$4bo7b3o2bo3bo2b3o7bo$bo5b2o5bo9bo
5b2o5bo$4bo3bobob2o3bo3bo3b2obobo3bo$2bobo2bo5bo3bo3bo3bo5bo2bobo$6bo
8bo7bo8bo$2bob3o4bo15bo4b3obo$2b4o2b2obobo11bobob2o2b4o$3bo2b2o3bob2o
2b2ob2o2b2obo3b2o2bo$5b2o3bo4bob2ob2obo4bo3b2o$2o3bob2o5b2o7b2o5b2obo
3b2o$bo3bo7b2obo5bob2o7bo3bo$obobo2bob4obo9bob4obo2bobobo!

I can't say I'm particularly hopeful of finding a solution...
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Re: Spaceship Discussion Thread

Postby Sokwe » September 28th, 2018, 6:23 am

wildmyron wrote:The longest extension I have found so far

At those widths, you're probably already probably outside of the range of searches that can be completed in a reasonable length of time.

Another wick that should have some stretchers/backends is ants. It can travel at both c/6 and 2c/7 (and a number of other speeds).
-Matthias Merzenich
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Re: Spaceship Discussion Thread

Postby wildmyron » September 28th, 2018, 6:48 am

Sokwe wrote:
wildmyron wrote:The longest extension I have found so far

At those widths, you're probably already probably outside of the range of searches that can be completed in a reasonable length of time.

I suspect you're right, but I thought it would be interesting to give ikpx another trial run, so that's where this result is from. I am of course running an asymmetric search and because of the floating rows it could generate solutions which can't be used, but happily the longest partials have all left the central row empty so they're valid.
Sokwe wrote:Another wick that should have some stretchers/backends is ants. It can travel at both c/6 and 2c/7 (and a number of other speeds).

I'll let this one run for a bit longer, though I don't think it will exhaust width 19 before I give up on it. Are you aware of any partial backend results for ants? If there are any with a decent gutter they could get a similar treatment.
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Re: Spaceship Discussion Thread

Postby wildmyron » September 30th, 2018, 10:40 am

4c/8 ship with gutter symmetry, min pop 88 cells:
x = 21, y = 24, rule = B3/S23
bo17bo$3o15b3o$ob2o13b2obo$b3o13b3o$b2o2b3o5b3o2b2o$8bo3bo$5bo3bobo3bo
$6bo2bobo2bo$7bobobobo$6b2obobob2o$5bo3bobo3bo$5b2o2bobo2b2o$7bo5bo5$
2b3o11b3o$bo2bo11bo2bo$4bo11bo$o3bo11bo3bo$o3bo11bo3bo$4bo11bo$bobo13b
obo!

Found with ntzfind.
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Re: Spaceship Discussion Thread

Postby gameoflifemaniac » September 30th, 2018, 10:43 am

wildmyron wrote:4c/8 ship with gutter symmetry, min pop 88 cells:
x = 21, y = 24, rule = B3/S23
bo17bo$3o15b3o$ob2o13b2obo$b3o13b3o$b2o2b3o5b3o2b2o$8bo3bo$5bo3bobo3bo
$6bo2bobo2bo$7bobobobo$6b2obobob2o$5bo3bobo3bo$5b2o2bobo2b2o$7bo5bo5$
2b3o11b3o$bo2bo11bo2bo$4bo11bo$o3bo11bo3bo$o3bo11bo3bo$4bo11bo$bobo13b
obo!

Found with ntzfind.

Cool. Finally a normal spaceship, not a partial.
https://www.youtube.com/watch?v=q6EoRBvdVPQ
One big dirty Oro. Yeeeeeeeeee...
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Re: Spaceship Discussion Thread

Postby KittyTac » September 30th, 2018, 11:12 am

wildmyron wrote:4c/8 ship with gutter symmetry, min pop 88 cells:
x = 21, y = 24, rule = B3/S23
bo17bo$3o15b3o$ob2o13b2obo$b3o13b3o$b2o2b3o5b3o2b2o$8bo3bo$5bo3bobo3bo
$6bo2bobo2bo$7bobobobo$6b2obobob2o$5bo3bobo3bo$5b2o2bobo2b2o$7bo5bo5$
2b3o11b3o$bo2bo11bo2bo$4bo11bo$o3bo11bo3bo$o3bo11bo3bo$4bo11bo$bobo13b
obo!

Found with ntzfind.

Is this the first 4c/8?
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Re: Spaceship Discussion Thread

Postby wildmyron » September 30th, 2018, 11:25 am

KittyTac wrote:
wildmyron wrote:4c/8 ship with gutter symmetry, min pop 88 cells:
<snip rle>

Is this the first 4c/8?

No, many 4c/8 ships have been known for quite some time.
http://conwaylife.com/wiki/31P8H4V0
https://github.com/Matthias-Merzenich/j ... 008-ss.rle
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Re: Spaceship Discussion Thread

Postby KittyTac » September 30th, 2018, 11:53 am

wildmyron wrote:
KittyTac wrote:
wildmyron wrote:4c/8 ship with gutter symmetry, min pop 88 cells:
<snip rle>

Is this the first 4c/8?

No, many 4c/8 ships have been known for quite some time.
http://conwaylife.com/wiki/31P8H4V0
https://github.com/Matthias-Merzenich/j ... 008-ss.rle

But is it the first gutter-symmetric one?
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