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Re: Long-lived methuselahs

Posted: September 19th, 2019, 10:10 am
by NickGotts
Cross-posted from "Systematic Survey of Small Patterns".

Here are two more variants of bunnies10a (10-cell single-cluster patterns that last 17425 steps). The one on the left has a bounding box 7*5, and an MCPS of 11, which according to the usual criteria for methuselahs makes it the preferred variant.

Code: Select all

x = 27, y = 5, rule = B3/S23
bo19bo$3o17b2obo$3bobo19bo$bo2b2o15b2ob2o$6bo19bo!

Re: Long-lived methuselahs

Posted: November 8th, 2019, 5:15 pm
by NickGotts
Another slight improvement (in terms of life-span) to bunnies10. Let's call this one bunnies10b: lasts 17431.

Code: Select all

x = 9, y = 6, rule = B3/S23
o$bo$2bo$3bo$2b2obo$6b3o!
Bounding box 9*6, MCPS 11.

Here's an alternative form - the two have the same immediate successor:

Code: Select all

x = 9, y = 6, rule = B3/S23
o$2bo$bo$3bo$2b2obo$6b3o!
Same bounding box, but MCPS of 13.

Step 29 of bunnies10b is the same as step 23 of bunnies 10a.