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 ]]
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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	1971
Rules Outer-totalistic rules B3/S23 only # 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, or a glider as in sidewinder. A pulsar is formed at the south-western side in generation 4957.

x = 175, y = 70, rule = B3/S23 70bo5bo88b2o$28b2ob2o37bo5bo20b3o65bobo$28b2ob2o37bo5bo89bo$152bo$72b 3o8b2o18bo48bo10bo$65b2o16b2o17bobo47bo9bobo$64bo2bo34bobo57bobo$65b2o 36bo59bo$152b3o2b3o2$69bo15bo39b2o$68bobo13bobo37bo2bo$68bobo13b2o15b o22bobo$69bo30bobo22bo12b3o$7bo92bo2bo$6bobo92b2o33bo5bo$6bobo25bo62b o17b2o7b3o9bo5bo$7bo25bobo51b2o7bobo15bo2bo18bo5bo$33bobo50bo2bo6bobo 16b2o$34bo10b2o39bobo8bo40b2o$45b2o40bo49bo2bo$29b2o7b2o85b2o11bobo25b 3o$28bo2bo5bo2bo13b3o67bo2bo11bo$29b2o7b2o85b2o$22b2o28bo5bo$22b2o10b o17bo5bo100bo$33bobo16bo5bo100bo$33bobo45bo77bo$18b2o14bo19b3o24bo$18b 2o61bo80bo5b2o$144b2o16bo5b2o$55bo87bo2bo15bo$54bobo32b3o18bo33b2o$54b obo43b3o7bo47b2o$55bo54bo47b2o$8b2o88bo5bo$7bobo65b3o20bo5bo37b2ob2o$ 8bo89bo5bo37b2ob2o$22bo$11bo10bo48bo18b2o8b3o$10bobo9bo47bobo17b2o16b 2o$10bobo57bobo34bo2bo$11bo59bo36b2o$15b3o2b3o2$48b2o39bo15bo$47bo2bo 37bobo13bobo$48bobo22bo15b2o13bobo$34b3o12bo22bobo30bo$71bo2bo92bo$32b o5bo33b2o92bobo$32bo5bo9b3o7b2o17bo62bo25bobo$32bo5bo18bo2bo15bobo7b2o 51bobo25bo$58b2o16bobo6bo2bo50bobo$35b2o40bo8bobo39b2o10bo$34bo2bo49b o40b2o$6b3o25bobo11b2o85b2o7b2o$35bo11bo2bo67b3o13bo2bo5bo2bo$48b2o85b 2o7b2o$116bo5bo28b2o$15bo100bo5bo17bo10b2o$15bo100bo5bo16bobo$15bo77b o45bobo$93bo24b3o19bo14b2o$5b2o5bo80bo61b2o$5b2o5bo16b2o$12bo15bo2bo87b o$29b2o33bo18b3o32bobo$15b2o47bo7b3o43bobo$15b2o47bo54bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 3.6 Y 6 HEIGHT 480 THUMBSIZE 2 ]]

The debris of puffer 2
(click above to open LifeViewer)
RLE: here Plaintext: here

See also

• Puffer 1
• Backrake 2
• Sidewinder
• p112 puffer
• 54P12H6V0

External links

• Puffer 2 at the Life Lexicon