How could I search a rule like B3ai4cet5c6c7c/S2a3-kqr4eqt5i6cei78? There are a lot of high-period oscillators, but the rule is explosive. (It does stabilize on a torus.) Normal apgsearch can't work because of the explosiveness. apgspaceinvaders works pretty quickly, but because almost every soup will either explode or settle down nearly immediately into blocks and preblocks, it is very limited in what it can find. I also tried making a stdin symmetry with soups like the following, and apgsearch can find some oscillators, but it is very slow (~4 soups/second) and often logs "Failed to detect periodic behavior!". Blocks are indestructible, so the stdin soup cannot explode. The example soup turns into a p794.
Code:
Select all
x = 50, y = 50, rule = b3ai4cet5c6c7cs2a3-kqr4eqt5i6cei78
2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o$2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o5$2o46b2o$2o46b2o5$2o46b2o$2o46b2o4$20b2o5bo$2o15bo2bob4o3b2obo15b2o$2o15bo5bobo2bo2bo16b2o$17bo4bobobobo2bo$17bob5ob2ob2o2bo$17b2o2bob3ob3o$19b2o3b5o2bo$2o15bobob9ob2o15b2o$2o16b2o2bo2b2obo19b2o$19b2ob6ob4o$19bo4bo2b3o2bo$19bo5b5ob2o$18b2ob2ob2o3bobo$2o15b2ob2o6bob2o16b2o$2o15bob2ob3o2b3obo16b2o$17bobob3ob5o2bo4$2o46b2o$2o46b2o5$2o46b2o$2o46b2o5$2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o$2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o4b2o!
p460 from manual searching:
Code:
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x = 62, y = 31, rule = B3ai4cet5c6c7c/S2a3-kqr4eqt5i6cei78
43b2o$43b2o5$24b2o$25bo2$23b3o$34b2o$24bo9bo2$16b2o6bo6b2o$16b2o5b3o5b
2o27b2o$24bo36bo2$60b2o$60b2o$2o$o2$20b2o5b2o14b2o$20b2o5b2o14b2o$6b2o
27bo$6bo27b2o3$26bo$25b2o25bo$52b2o!
PK22 wrote: November 4th, 2025, 1:56 pm
Here is the RLE I got, but it doesn't seem to be a ZZ_EXPLOSIVE - it does produce a p48 which looks like it might be difficult to separate:
Code:
Select all
x = 31, y = 31, rule = B2e3cijqy4c/S2-in3an4y
boobobobbobbbooobbbobbobobbooob$
obbobooboobbobboooobbbboooobobo$
obbbbbobbooboobobobbooobobooboo$
bobbbbobobbbboooboobbooboobbobo$
obbbboobboobbbbobbbobbbooobboob$
bobbooboboooboooobbooooooooobob$
ooooobobobobbbooooobobbbooooooo$
bbbbbobobbbbobbobbboobooboobbob$
bobobbobboobooboboobbbboboboobo$
oooboobboobooboobobooobbboboobb$
bbobooobobboobbobobbbobooobbobb$
bbbbbobbboobooobobobboboboobbbo$
boobbbbooooobbbbbbbobbobobbobob$
oboobobbobbobooooobbooobobbooob$
obboboobbobobooooobobbbboobbbob$
ooooooooooobbooboobbooooooooooo$
bobbboobbbbobooooobobobboobobbo$
booobbobooobbooooobobbobboboobo$
bobobbobobbobbbbbbbooooobbbboob$
obbboobobobboboboooboobbbobbbbb$
bbobbooobobbbobobboobbobooobobb$
bboobobbboooboboobooboobboobooo$
oboobobobbbboobobooboobbobbobob$
bobboobooboobbbobbobbbbobobbbbb$
ooooooobbbobooooobbbobobobooooo$
bobooooooooobbooooboooboboobbob$
boobbooobbbobbbobbbboobboobbbbo$
obobbooboobboobooobbbbobobbbbob$
ooboobobooobbobobooboobbobbbbbo$
oboboooobbbboooobbobbooboobobbo$
booobbobobbobbbooobbbobboboboob!
That's strange - apgsearch running B2e3cijqy4c/S2-in3an4y has successfully separated thousands of different oscillators which are composed of interacting copies of the common p12, p24, and/or p48 (as well as duoplets/blocks). Also, long-lasting soups seem to be very rare in B2e3cijqy4c/S2-in3an4y, so the periodicity should've been detected, just as it has been in very many other soups.
Edit: 2c/4 from rlifesrc
Code:
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x = 5, y = 11, rule = B3ai4cet5c6c7c/S2a3-kqr4eqt5i6cei78
bobo$5o$bo2$bo$b4o$bo2$bo$5o$bobo!