Block splitter rule.

[silversmith]

On the discord there was some discussion about glider splitters made of a single block, and here are some reactions in such a rule. It includes a 180 degree fire command, a push command, a potential arbitrary pull, and a large explosion.

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x = 281, y = 51, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
135bobo$136b2o$136bo$81bo$79bobo$80b2o2$112bobo$113b2o$113bo5$obo$b2o
147bobo$bo91bo57b2o$94b2o55bo$93b2o4$42bobo$43b2o56bo107bo5bo3bobobo
3bobobo3bobo$43bo55bobo137bo$11bobo86b2o58bobo46bobobobo5bo5bo6bo$12b
2o147b2o66bo$12bo148bo47bo2bo2bo5bo9bo2bo$50bo188bo$48bobo56bo101bo5bo
3bobobo3bobobo3bobo$49b2o54bobo154bo3bo2bobobo2bo3bo$106b2o156bo12bo
2bo$262bo3bo4bo$276bo2bo$262bo3bo2bobobo2bo3bo$56bo$24bo32b2o54bo29bo
29bo21bo15bo30bo$22bobo31b2o56b2o25bobo27bobo22b2o14bo12bobo15b2o$23b
2o88b2o27b2o28b2o21b2o13b3o13b2o14b2o20bo$226bo35bobo$263b2o2$249bo$
203bo14bo14bo16bo18bo$32bo33bo84bo29bo22bo14bo14bo13b3o19bo$33bo33bo55b
o28bo29bo19b3o12b3o12b3o33b3o$31b3o31b3o56bo25b3o27b3o$122b3o82b2o13b
2o13b2o15b2o$70b2o135b2o13b2o13b2o15b2o16b2o$37b2o31b2o55b2o27b2o28b
2o84b2o$37b2o88b2o27b2o28b2o!

[goldenratio]

A surprisingly decent lifelike rule with a block splitter:

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x = 29, y = 8, rule = B2n3aeijn4ktwz5qr6-k/S2-i3-y4iqwy5ckr6aen
bo$2bo$3o3$5b2o8b3o9b2o$5b2o8bobo8b2o$15bobo9bo!

[FWKnightship]

Natural c/3d:

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x = 9, y = 9, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
2bo$b3o$2o2bo$bo2bo$2b3o$5b2o$5bob2o$6bo$6bobo!

Soup:

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x = 32, y = 32, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
ooobboboobobboobboobboboobobbooo$
oooooboooooboobbbboobooooobooooo$
oobbboooobbbbobbbbobbbboooobbboo$
bobbbbboooobobbbbbboboooobbbbbob$
bobbooobobboooooooooobbobooobbob$
obobobooobooobboobbooobooobobobo$
boobooobbbobbboooobbbobbboooboob$
oooobobbbbobbbboobbbbobbbboboooo$
oooooobbbbboooooooooobbbbboooooo$
bobobbbbbbboobboobboobbbbbbbobob$
oobobooobbbbooobbooobbbboooboboo$
bbbboobboobobbboobbboboobboobbbb$
bobooobbooobboooooobbooobbooobob$
ooobobbboboboooooooobobobbbobooo$
obbboboboboboobooboobobobobobbbo$
bbbboooooobooooooooooboooooobbbb$
bbbboooooobooooooooooboooooobbbb$
obbboboboboboobooboobobobobobbbo$
ooobobbboboboooooooobobobbbobooo$
bobooobbooobboooooobbooobbooobob$
bbbboobboobobbboobbboboobboobbbb$
oobobooobbbbooobbooobbbboooboboo$
bobobbbbbbboobboobboobbbbbbbobob$
oooooobbbbboooooooooobbbbboooooo$
oooobobbbbobbbboobbbbobbbboboooo$
boobooobbbobbboooobbbobbboooboob$
obobobooobooobboobbooobooobobobo$
bobbooobobboooooooooobbobooobbob$
bobbbbboooobobbbbbboboooobbbbbob$
oobbboooobbbbobbbbobbbboooobbboo$
oooooboooooboobbbboobooooobooooo$
ooobboboobobboobboobboboobobbooo!

[PHPBB12345]

How to make non-destructive eater?

[silversmith]

In the top rule the snake is a stable eater.

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x = 32, y = 35, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
23b2o$23b2o7$12b2o$12b2o3$16b2o$16bobo$2o14bo$o9bo$bo6b2o$2o7b2o14b2o
$25b2o$5b2o$5b2o23b2o$13bo6bo9bo$14bo5b2o9bo$12b3o4bobo8b2o5$18b2o$
13bo4b2o$11b2o$12b2o$12b2o$13bob2o$13b2obo!

[Sarah]

A reaction

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x = 6, y = 3, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
o$b2ob2o$2o2b2o!

[offtopic] Wait, there's a discord? [/offtopic]

[toroidalet]

Apologies if you people on the Discord have figured it out already, but here's a general plan for a potential mini (but with a huge orthogonal bounding box) demonoid (with the blocks probably farther apart and the snakes closer):

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x = 38, y = 32, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
8bob2o$8b2obo2$ob2o$2obo8$13b2o9b2o$13b2o9b2o5$6b2o$5bobo$7bo2$18b2o$
18b2o$3o$2bo$bo4$36b2o$36b2o!

The construction arm would first make the bottom splitters, then the lower snake, then the top splitter and the top snake (maybe with help from super early tape gliders?), and push the construction block forward. The hardest part here is probably making the snakes. An alternative (but somewhat rarer) potential eater is the clawed tub, which can eat gliders in 2 different ways:

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x = 10, y = 9, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
7bo$7bobo$7b2o2$5bobo$4bob2o$bo3bo$2bob2o$3o!

Is anyone on the Discord searching for ways to make these eaters? (it could be possible to set up an apgsearch symmetry for single-channel commands)

Sarah: not to discourage you from making contributions, but in general simple reactions like those with no obvious purpose don't really deserve a post of their own.

[silversmith]

The discussion of these rules on the discord was minimal, and it makes more sense to discuss it here anyway.

We should consider changing the rule as this one has too few still lifes to act as intermediate steps for slow salvo construction.

Here is every possible result of two parallel gliders hitting a block.

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x = 257, y = 13, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
25bobo11bobo13bo19bo19bo14bo8bo9bo18bobo$26b2o12b2o11bobo17bobo17bobo
12bobo9bo9bo18b2o14bobo12bobo9bo8bo10bo17bo15bo$26bo13bo13b2o18b2o18b
2o13b2o7b3o7b3o18bo16b2o13b2o7bobo6bobo8bobo15bobo16b2o$bo16bo147bo
14bo9b2o7b2o9b2o16b2o15b2o$2bo16bo$3o14b3o4$161bobo$21bobo9bobo14bobo
17bobo14bobo12bobo8bobo7bobo17bobo14b2o13bobo8bobo5bobo10bobo14bobo16bo
bo8bobo$4b2o14b2o10b2o15b2o18b2o15b2o13b2o9b2o8b2o18b2o17bobo10b2o9b
2o6b2o11b2o15b2o17b2o9b2o$4b2o15bobo9bobo14bobo17bobo14bobo12bobo8bobo
7bobo17bobo29bobo8bobo5bobo10bobo14bobo16bobo8bobo!

For reference CGOL has hundreds of possible collisions between two parallel gliders and a block

[ENORMOUS_NAME]

really?

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x = 21, y = 24, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
7$9bo$10bo$8b3o$2bo$3bo$b3o3$14b2o$14b2o!

edit: 4g pythonk

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x = 15, y = 19, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
obo$b2o$bo7$8bo$9bo$7b3o6$13b2o$13b2o!

[silversmith]

really?

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two parallel gliders colliding with a block

Right. I should have specified slow salvo parallel gliders

Some more enumerated collisions

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x = 83, y = 52, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
bo$2bo9bobo9bo8bo8bo$3o10b2o7bobo9b2o7b2o$13bo9b2o8b2o7b2o4$5bobo5bob
o11bobo4bobo9bobo$5bobo5bobo11bobo4bobo9bobo$5bobo5bobo11bobo4bobo9bo
bo12$74bo$bo16bo12bo8bo8bo10bo14bo$2bo16bo12bo8bo8bo10bo11b3o$3o14b3o
10b3o6b3o6b3o8b3o3$81b2o$7b2o10b2o9b2o9b2o11b2o12b2o11bo$8bo11bo9bo
10bo12bo13bo11b2o$8b2o10b2o7b2o9b2o11b2o12b2o12$17bo10bo7bo15bo$3bo14bo
10bo7bo15bo$4bo11b3o8b3o5b3o13b3o$2b3o3$47b2o12b2o$10b2o8b2o6b2o16bob
o11bobo$9bobo7bobo5bobo17bo13bo$10bo9bo7bo!

If someone can find some 90 degree fire instructions and slow salvo eater recipes, the rule might work.
Here is a block duplication

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x = 60, y = 40, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
o$b2o$2o6$14bo$12bobo$13b2o$22bo$20bobo$21b2o11$51bo$49bobo$50b2o4$
55bo$56bo$54b3o6$58b2o$58b2o!

[creeperman7002]

In my (2,1)c/5 search in ikpx2, here is the longest partial so far:

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x = 32, y = 55, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
5bo$b4ob2o$b2o2bobo$b2o3bo2bo$o2bo3bo$o2b2o$ob3o$5b2o$4b2obo$7b2o$3bob
obo2bo$4bo2bob3o$5b2o2bobo$6bob3ob2o$9b2ob2o$6bob3obo$9b2o3bo$9bo3bobo
$8b2o5bo$9bo4bobo$15b2o$11b3o2b2o$12bo2b2o$10b2ob4o$10bobo2bo2bo$10bo
2bo3bo$11b2obo2bo$11b2ob2ob2o$13b2o2b2o$13bob2o$13b2ob2o$13bob5o$12bob
3o$11bo2b2o3b3o$11bob2o2bo$17bo2bo$16bo4bo$17b5o$16b5obo$18bob3o$16bo
2bob2o$16bobo2bob4o$17b3obo2bo$22b2obobo$18b3ob2obo$18b2o2b2o2bobo$19b
4o2bobo$18bob2o3b3obo$18b5o5b3o$19b3o8bo$19bo5b2o2bobo$27bo$20b4o2b2o$
22bo2bo$23bo!

Also an infinite family of statorless p3s:

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x = 91, y = 31, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
75bo$74bobo$73bo3bo$72bo5bo$43bo27bo2bobo2bo$42bobo25bo4bo4bo$41bo3bo
23bo2bo2bo2bo2bo$40bo5bo21bo4b2ob2o4bo$19bo19bo2bobo2bo19bo2bo2b5o2bo
2bo$18bobo17bo4bo4bo17bo4b2ob3ob2o4bo$17bo3bo15bo2bo2bo2bo2bo15bo2bo2b
3o3b3o2bo2bo$16bo5bo13bo4b2ob2o4bo13bo4b2ob2o3b2ob2o4bo$3bo11bo2bobo2b
o11bo2bo2b5o2bo2bo11bo2bo2b3o3bo3b3o2bo2bo$2bobo9bo4bo4bo9bo4b2ob3ob2o
4bo9bo4b2ob2o2bobo2b2ob2o4bo$bo3bo7bo2bo2bo2bo2bo7bo2bo2b3o3b3o2bo2bo
7bo2bo2b3o3bo3bo3b3o2bo2bo$o5bo5bo4b2ob2o4bo5bo4b2ob2o3b2ob2o4bo5bo4b
2ob2o2bo5bo2b2ob2o4bo$bo3bo7bo2bo2bo2bo2bo7bo2bo2b3o3b3o2bo2bo7bo2bo2b
3o3bo3bo3b3o2bo2bo$2bobo9bo4bo4bo9bo4b2ob3ob2o4bo9bo4b2ob2o2bobo2b2ob
2o4bo$3bo11bo2bobo2bo11bo2bo2b5o2bo2bo11bo2bo2b3o3bo3b3o2bo2bo$16bo5bo
13bo4b2ob2o4bo13bo4b2ob2o3b2ob2o4bo$17bo3bo15bo2bo2bo2bo2bo15bo2bo2b3o
3b3o2bo2bo$18bobo17bo4bo4bo17bo4b2ob3ob2o4bo$19bo19bo2bobo2bo19bo2bo2b
5o2bo2bo$40bo5bo21bo4b2ob2o4bo$41bo3bo23bo2bo2bo2bo2bo$42bobo25bo4bo4b
o$43bo27bo2bobo2bo$72bo5bo$73bo3bo$74bobo$75bo!

[FWKnightship]

Natural p55:

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x = 13, y = 13, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
b2o$4bo3b2o2bo$3b2o3bo3bo$bobo5b2o$b2o7b2o4$b2o7b2o$2b2o5bobo$o3bo3b2o
$o2b2o3bo$10b2o!

Soup:

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x = 31, y = 31, rule = B3-cy4ik5aeiq6k7c/S2-k3-ciqy4itwyz5-cjry6kn
oobbboboobbobobbboboobbooobbobo$
bobbooooobbobbbobbobbbbbooobooo$
ooboobbobobooobboobbbobooboobbb$
bboobobbobbbobboooooboooooooobb$
boooooboooboobboobboobbooooboob$
ooboooobbbooooooooobbbboooooboo$
oooooobbooboooobbbbooobbbobbbob$
oboooobobbbboboooboboboobbobooo$
bbbobbbooobbbbbobbooooobobooboo$
bboobbobobbbbbboooobbbobobobobb$
obbbobooobooooboooboobbbbobbbbb$
obbooboboboobbboboooobbbooobooo$
bobobobooobobooobbbbobboooooobb$
oboobobbboooboobooobobbboobbobo$
bbooooboboobboboboobbbbooobbbbb$
bobooobooooooboooboooooobooobob$
bbbbbooobbbboobobobbooboboooobb$
obobboobbboboooboobooobbboboobo$
bboooooobbobbbbooobobooobobobob$
ooobooobbboooobobbbooboboboobbo$
bbbbbobbbbooboooboooobooobobbbo$
bbobobobobbboooobbbbbbobobboobb$
ooboobobooooobbobbbbbooobbbobbb$
ooobobboobobobooobobbbboboooobo$
bobbbobbbooobbbbooooboobboooooo$
oobooooobbbbooooooooobbbooooboo$
booboooobboobboobboobooobooooob$
bboooooooobooooobbobbbobboboobb$
bbbooboobobbboobbooobobobbooboo$
ooobooobbbbbobbobbbobbooooobbob$
obobbooobboobobbbobobboobobbboo!