Frothing puffer

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Frothing puffer
x = 33, y = 23, rule = B3/S23 7bo17bo$6b3o15b3o$5b2o4b3o5b3o4b2o$3b2obo2b3o2bo3bo2b3o2bob2o$4bobo2bo bo3bobo3bobo2bobo$b2obobobobo4bobo4bobobobob2o$b2o3bobo4bo5bo4bobo3b2o $b3obo3bo4bobobo4bo3bob3o$2o9b2obobobob2o9b2o$12bo7bo$9b2obo7bob2o$10b o11bo$7b2obo11bob2o$7b2o15b2o$7bobobob3ob3obobobo$6b2o3bo3bobo3bo3b2o$ 6bo2bo3bobobobo3bo2bo$9b2o4bobo4b2o$5b2o4bo3bobo3bo4b2o$9bob2obo3bob2o bo$10bobobobobobobo$12bo2bobo2bo$11bobo5bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ AUTOSTART OFF ]]
Pattern type Puffer
Number of cells 175
Bounding box 33×23
Direction Orthogonal
Period 78
Speed c/2
Discovered by Paul Tooke
Year of discovery 2001

A frothing puffer (or frothing spaceship) is a puffer with an apparently unstable (but in fact stable) back end. It can also refer to a specific puffer discovered by Paul Tooke which lays ten blinkers and two blocks each period.

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