This is a pretty self explanatory post. I've seen this 5-cell pattern pop up a few times, but it seems a little cheaty, since all of the clones are connected:
Code: Select all
x = 3, y = 3, rule = B3/S23
bo$3o$bo!
#C [[ STOP 5 ]]
But recently, I found an unnamed methuselah in the evolution of the R-Pentomino, that is a very weak failed replicator, but both halves are separated:
Code: Select all
x = 13, y = 14, rule = LifeHistory
5.A$5.2A$4.A2.A$5.A.A$6.A6$2.D7.D$2D.D5.D.2D$.D2.D3.D2.D$2.2D5.2D!
#C [[ STOP 41 ]]
I began to look at other methuselahs, such as the B-heptomino. It repeats itself once 64 generations into its evolution:
Code: Select all
x = 24, y = 4, rule = LifeHistory
3A17.3D$2.A17.D2.D$2.A17.D$.A!
#C [[ STOP 64 ]]
This 6-cell R-pentomino relative takes 106 generations to regenerate, as a part of the B-heptomino:
Code: Select all
x = 34, y = 13, rule = LifeHistory
30.3D$29.D3.D$28.D5$.A$A$A$A$.A$2.A!
#C [[ STOP 106 ]]
I'd be interested in seeing if there are more of these. Obviously, any spaceship counts, but I'm more interested in failed versions.