Seeds
Explorer rule · B3/S
Nothing survives; only births. Explosive fireworks.
How the rule works
- Each cell has 26 neighbours: every cell that shares a face, an edge or a corner with it (the Moore neighbourhood).
- An empty cell comes alive when exactly 3 of its neighbours are alive.
- No live cell survives: every live cell dies after one generation.
Picking it in the app restarts the world from a random block in the middle of the box, 50% full and a third as wide as the box. Its seed is fixed, so it is the same world every time, one still alive 40 generations later in the default 15×15×15 box; N tries another seed.
Notation
| Birth/survival | B3/S |
|---|---|
| Softology, MCell (S/B/C/N) | /3/2/M |
| Weighted counting | B9-12/S (faces count 3, edges 2, corners 1) |
| Neighbourhood | Moore (26 cells) |
B lists the neighbour counts at which an empty cell is born, S those at which a live cell survives, and C the number of states. How to read a rule
More explorer rules
- 2D Conway
B3/S2-3 - Life 4555
B5/S4-5 - Spiky
B4-6/S5 - Maze
B3/S1-5 - Explosive
B4-5/S3-4 - Day & Night
B3,6-8/S3-4,6-8 - Life 5766
B6/S5-7
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