Puffer 2

Puffer 2
x = 18, y = 5, rule = B3/S23 b3o11b3o$o2bo10bo2bo$3bo4b3o6bo$3bo4bo2bo5bo$2bo4bo8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 20 AUTOSTART OFF ]]
View static image
Pattern type	Puffer
Number of cells	22
Bounding box	18×5
Direction	Orthogonal
Period	140
Speed	c/2
Discovered by	Bill Gosper
Year of discovery	Unknown
Rules Outer-totalistic rules B3/S23 only Important rules Conway Life # of rules 20 = 1 Isotropic rules B3/S23 only
Glider synthesis Fewest gliders 9 Uploaded synthesis RLE puffer2_synth.rle
Pattern files Plaintext puffer2.cells RLE puffer2.rle

Puffer 2 was the second puffer to be found and was discovered by Bill Gosper. It is extremely dirty and its tail does not stabilize until generation 5533, after which it stays at period 140. It consists of a B-heptomino (shown here one generation before its standard form) escorted by two lightweight spaceships at a period of 20. Its debris can be stabilized by a third lightweight spaceship as in ecologist. A pulsar is formed at the south-western side in generation 4957.

See also

• Puffer 1
• Backrake 2
• Sidewinder

External links

• Puffer 2 at the Life Lexicon