Thumb 1

Thumb 1
x = 13, y = 9, rule = B3/S23 3b2o$3bobob2o2b2o$2obo3bobo2bo$2obo3bob3o$3bo3bo$3bobob3o$4bobo3bo$6bo 2b2o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 3 ZOOM 20 LOOP 9 ]]
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Pattern type	Oscillator
Number of cells	36
Bounding box	13 × 10
Period	9
Mod	9
Heat	5.1
Volatility	0.42
Strict volatility	0.42
Discovered by	Dean Hickerson
Year of discovery	1998
Rules Outer-totalistic rules B3/S23 – B378/S23678 Important rules Conway Life # of rules 25 = 32 Isotropic rules B3/S23-j – B2n34cq5ac6acn78/S234ceijtwy5-eiqr678
Glider synthesis Fewest gliders 74† Catagolue-generated RLE thumb1_synth.rle Uploaded synthesis RLE thumb1_synth.rle †Can be constructed with 16 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext thumb1.cells RLE thumb1.rle
Identifiers apgcode xp9_039e0o4czolnhlla23zw66 Pentadecathlon ID 36P9.1

Thumb 1 is a period-9 thumb oscillator that was found by Dean Hickerson in October 1998. It is the smallest period-9 sparker by population (the smaller 29P9 is not a sparker).

See also

• 94P27.1
• Pentadecathlon on thumb 1
• p6 thumb
• Period-9 sparkers

External links

• Thumb 1 at the Life Lexicon

• Thumb 1 at Adam P. Goucher's Catagolue

• 36P9.1 at Heinrich Koenig's Game of Life Object Catalogs