Baker's dozen

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.[1]

Baker's dozen
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>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 ]] <nowiki>#C [[ GPS 3 ZOOM 15 LOOP 12 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
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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
Strict volatility 0.41
Discovered by Robert Wainwright
Year of discovery 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).

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>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 12 LOOP 13 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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A 37-cell variant of baker's dozen
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 35, y = 28, rule = B3/S23 25bo$24b2ob2o$24b5o$8bob2ob2obo7b2o$8b2obobob2o8bo2$8b3o3b3o6bobo$8bo 2bobo2bo7bo$10b2ob2o13bo$5bo13bo7bobo2b2o$2o2bobo11bobo2b2o2bo2bob2o$ 2obo2bo2b2o3b2o2bo2bob2o3b2o$4b2o3b2o3b2o3b2o2$31bo$31bo$4b2o3b2o5b2o 3b2o7b2obo$2obo2bo2b2o5b2o2bo2bob2o6b2o$2o2bobo13bobo2b2o3bo$5bo15bo8b 2o$29b2o$8b3o7bo10b3o$8b3o7bo$6b2o2b3o3bob2o$6b2o7b2o3bo$6b3o10bobo$8b o9bo2bo$8bo10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 12 LOOP 13 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 360 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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Several ways to stabilize baker's dozen
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RLE: here Plaintext: here

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  • 39P12.1 at Heinrich Koenig's Game of Life Object Catalogs
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