Snacker

Snacker
2o16b2o$bo16bob$bobo12bobob$2b2o12b2o2b$7bo4bo7b$5b2ob4ob2o5b$7bo4bo7b $2b2o12b2o2b$bobo12bobob$bo16bob$2o16b2o! #C [[ GPS 3 LOOP 9 THUMBSIZE 4 WIDTH 800 HEIGHT 480 ]] #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]]
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Pattern type	Oscillator
Number of cells	40
Bounding box	20×11
Period	9
Mod	Unknown
Heat	26.2
Volatility	0.77
Strict volatility	0.77
Discovered by	Mark Niemiec
Year of discovery	1972
Rules Outer-totalistic rules B3/S23 only Important rules Conway Life # of rules 20 = 1
Glider synthesis Fewest gliders 17 RLE snacker_synth.rle
Pattern files Life 1.05 snacker_105.lif Life 1.06 snacker_106.lif Plaintext snacker.cells RLE snacker.rle
Identifiers apgcode xp9_32acxca23zy04r4zy04r4zo8a6x6a8o

Snacker is a pentadecathlon with eater 1 stabilizers that force it into a lower period (from 15 to 9). It was found by Mark Niemiec in 1972. The stabilizers make the domino spark largely inaccessible, but the snacker is extensible as shown below and so a more accessible period 9 domino spark can be obtained – this is exactly the method that was used to create the first period 18 oscillator, 117P18.

Image gallery

Additional pentadecathlons can be added to extend snacker. The alternate stabilization on the right was found by Dean Hickerson in April 1998. Download RLE: click here

See also

• Worker bee

External links

• Snacker at the Life Lexicon

• Snacker at Adam P. Goucher's Catagolue