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x = 16, y = 16, rule = B3/S23 obobobobo3b2o$2bo3bo2bo3b3o$2bobo3bo5b2o$o3bo2b6ob2o$3ob2obobobo$6bo2b obob3o$2ob2o2bo2bob4o$o2bob2ob3o4bo$o4bob3o5bo$bobo2bob2ob2ob2o$3b3obo b2ob4o$obob4o3b3o$obo3b2ob2obobo$ob2ob3obob2o2bo$o3b3o2b2obo2bo$3ob2o 2b2ob2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 16 THUMBSIZE 2 WIDTH 480 HEIGHT 480 ]]
Pattern type Methuselah
Number of cells 130
Bounding box 16×16
MCPS 135
Lifespan 42100 generations
Final population 4884
L/I 323.8
F/I 37.6
F/L 0.116
L/MCPS 311.9
Discovered by Dave Greene
Year of discovery 2018

42100M is a methuselah with a lifespan of 42100 generations, discovered by Dave Greene on October 31, 2018, using Adam P. Goucher's apgsearch and Catagolue tools.[1] Until the discovery of 42883M ("Homer"), it was the longest-lasting known methuselah to fit within a 16×16 bounding box, surpassing the 20×20 soup Wilma which was discovered by Rob Liston just three days earlier.

Stable pattern

The stable pattern that results from 42100M (excluding 81 escaping gliders) has 4479 cells and consists of 317 blinkers (including 29 traffic lights and one interchange), 298 blocks, 216 beehives (including 12 honey farms), 67 loaves, 58 boats, 13 ships, ten tubs, seven ponds, five long boats, two mangoes, two ship-ties in the form of a fleet, one barge, one beacon, and one carrier.

See also


  1. Ian07 (October 31, 2018). Re: Soup search results (discussion thread) at the ConwayLife.com forums

External links