Backrake 1

Backrake 1
x = 27, y = 18, rule = B3/S23 5b3o11b3o$4bo3bo9bo3bo$3b2o4bo7bo4b2o$2bobob2ob2o5b2ob2obobo$b2obo4bob 2ob2obo4bob2o$o4bo3bo2bobo2bo3bo4bo$12bobo$2o7b2obobob2o7b2o$12bobo$6b 3o9b3o$6bo3bo9bo$6bobo4b3o$12bo2bo4b2o$15bo$11bo3bo$11bo3bo$15bo$12bob o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ ZOOM 14 AUTOSTART OFF ]]
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Pattern type	Rake Puffer
Number of cells	88
Bounding box	27×18
Direction	Orthogonal
Period	8
Speed	c/2
Discovered by	Jason Summers
Year of discovery	2001
Rules Outer-totalistic rules B3/S23 – B38/S23 Important rules Conway Life # of rules 21 = 2 Isotropic rules B3-e/S23-c – B34cejq5eik6cn7e8/S234ceit5enr6-k7e
Pattern files Plaintext backrake1.cells RLE backrake1.rle

Backrake 1 is a period 8 backrake that was discovered by Jason Summers on March 18, 2001. In the form showed in the image, it emits a stream of gliders. It can be modified in several ways:

• If the HWSS at the back is removed, it will become a puffer/rake creating nine blocks, eight beehives, six blinkers, two ships and two gliders every 224 generations.
• If the small pattern on the bottommost left side is mirrored onto the right, it will become a puffer creating 14 blocks, ten blinkers, four beehives, two boats, two loaves and two bakeries every 80 generations.
• If the one on the right is mirrored onto the left, it becomes a p2 c/2 spaceship.

Image gallery

• 

  Puff emitted by first variation (excluding gliders)

• 

  Puff emitted by second variation

External links

• Backrake 1 at the Life Lexicon