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!
```