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x = 20, y = 20, rule = B3/S23 o2bob2o2bobo2bo$2o2b2ob3obob2o2b3o$b2o2bo3bob6o$2obo4b4obo3b2o$obob2ob o2b3ob5o$b2ob3ob4o2b2ob3o$b2o6bo2b5ob2o$bo6bobob3obo2bo$o3bob3ob3o3bob o$b2o2b2obob3o$b4o3bo4b2obo$2o2b6obo5bobo$bob3ob3obobo4bo$obobobobo3b 3o3b2o$2obobob2o3b2ob4o$ob2ob2o6bobo2bo$o3b2ob2ob2obo4bo$7o6bo4bo$2b2o bo7b2o2b3o$o3b3o2bo3b3o2bo! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 16 THUMBSIZE 2 WIDTH 480 HEIGHT 480 ]]
Pattern type Methuselah
Number of cells 197
Bounding box 20×20
MCPS 201
Lifespan 39693 generations
Final population 3524
L/I 201.5
F/I 17.9
F/L 0.089
L/MCPS 197.5
Discovered by Rob Liston
Year of discovery 2018

Wilma is a methuselah with a lifespan of 39693 generations, discovered by Rob Liston on October 28, 2018, using a custom FPGA soup searcher.[1] It was briefly the longest-lived known methuselah to fit within a 20×20 bounding box, surpassing Fred which was discovered in 2010. In response to its discovery, Adam P. Goucher updated apgsearch to track methuselae, and just three days later, 42100M was discovered by Dave Greene breaking the record once again.

The pattern is named after Wilma Flintstone, the wife of Fred Flintstone in the animated sitcom The Flintstones.

Stable pattern

See also


  1. Rob Liston. Re: Soup search results (discussion thread) at the ConwayLife.com forums