Baker's dozen

Baker's dozen
x = 23, y = 11, rule = B3/S23 2o9b2o$4obo5b2o$obo2b3o$11bo$4b2o4bobo$4bo5bo2bo4bo$11b2o4b2o2$15b3o2b obo$10b2o5bob4o$10b2o9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 3 ZOOM 16 LOOP 12 ]]
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Pattern type	Oscillator
Number of cells	39
Bounding box	25 × 11
Period	12 (mod: 6)
Heat	36.3
Volatility	0.89 | 0.41
Kinetic symmetry	n.c
Discovered by	Robert Wainwright
Year of discovery	1989
Rules Outer-totalistic rules B3/S23 – B38/S2378 # of rules 23 = 8 Isotropic rules B3-ky/S23-cejk – B34ceikqy5-acik6-an7e8/S234cekqtwz5-cinr6ein78
Glider synthesis Fewest gliders 16† Catagolue-generated RLE synthesis Uploaded synthesis RLE bakersdozen_synth.rle †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext bakersdozen.cells RLE bakersdozen.rle
Identifiers apgcode xp12_2hqz037133zccw6q4wi6zy1oogtozy4bh8 Pentadecathlon ID 39P12.1

Baker's dozen is a period-12 oscillator consisting of a loaf hassled by two blocks and two caterers. The original form (using period-4 and period-6 oscillators to hassle) was found by Robert Wainwright in August 1989.

It can be stabilised and welded in many ways. A caterer can be used in 2 ways, one way is also suitable for the jam. A mazing would work, and two can be stabilised next to each other. Two opposite ones can be stabilised with two bookends (shown below as bookend on snake). Eater 2s also work, and the eater 2-stabilized version of this oscillator was synthesized with only 24 gliders by iNoMed.

x = 11, y = 21, rule = B3/S23 b3o$5bo$o4bo$4bo$b2o$bo$bo$bo2$4b2o3b2o$2o2bobo3bo$2o3bo$5bo$9bo$9bo$ 9bo$8b2o$6bo$5bo4bo$5bo$7b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 3 LOOP 12 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 ]] A 37-cell variant of baker's dozen (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 38, y = 28, rule = B3/S23 24b3o$28bo$23bo4bo$8bob2ob2obo10bo$8b2obobob2o7b2o$24bo$8b3o3b3o7bo$8b o2bobo2bo7bo$10b2ob2o$27b2o3b2o$2o3b2o11b2o3b2o2bobo3bo$o3bobo2b2o3b2o 2bobo3bo3bo$5bo3b2o3b2o3bo8bo3bo$bo3bo13bo3bo8bo$31b2obo$bo3bo15bo3bo 5b2ob3o$5bo3b2o5b2o3bo15bo$o3bobo2b2o5b2o2bobo3bo4b2ob3o$2o3b2o13b2o3b 2o5bobo$32bobo$33bo$8b3o$8b3o7bo$6b2o2b3o2b2ob2o$6b2o7b4obo$6b3o10bob o$8bo9bo2bo$8bo10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 3 LOOP 12 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 360 ]] Several ways to stabilize baker's dozen (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

In other rules

Baker's dozen can function without external supports in some isotropic non-totalistic rules suppressing B3q birth, such as B3-q/S23:

x = 11, y = 4, rule = B3-q/S23 4b2o3b2o$2obo2bo2b2o$2o2bobo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 GPS 3 LOOP 12 AUTOSTART ]]

Free baker's dozen in B3-q/S23 (click above to open LifeViewer) Catagolue: here

See also

• Twirling T-tetsons 2, whose stable form also uses the eater 2-assisted loaf spin reaction
• Popover, using the maze-assisted loaf spin reaction

External links

• Baker's dozen at the Life Lexicon
• Baker's dozen at Adam P. Goucher's Catagolue
• Baker's dozen w/ eater 2s at Adam P. Goucher's Catagolue
• Baker's dozen w/ short keys at Adam P. Goucher's Catagolue
• 39P12.1 at Heinrich Koenig's Game of Life Object Catalogs
• Baker's dozen at Wikipedia (name origin, meaning a count of 13 which is one more than the period of this oscillator)