Small lake

Small lake
x = 9, y = 9, rule = B3/S23 4bo$3bobo$3bobo$b2o3b2o$o7bo$b2o3b2o$3bobo$3bobo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
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Pattern type	Strict still life
Number of cells	20
Bounding box	9 × 9
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S2 – B3678/S012345678 # of rules 212 = 4096
Glider synthesis Fewest gliders 10 Uploaded synthesis RLE smalllake_synth.rle
Pattern files Plaintext smalllake.cells RLE smalllake.rle

Small lake is a 20-cell still life. It is similar in structure to lake 2, although it is not a true lake itself due to its four sides that are only a single cell in length.

It occurs frequently in the Life-like cellular automaton B3/S235, evolving from several precedessors of traffic lights.

If you fill in the inside corners near the center, the life stays still. However, all four must be in place or the life will break. You can also put a blinker-shaped line in the middle, and it will stay still if done correctly.

External links

• Small lake at the Life Lexicon