Carnival shuttle

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Carnival shuttle
x = 23, y = 7, rule = B3/S23 18bobobo$3ob3o11bobobo$3bo6bo3bo3bo3bo$2o3b2o3bob3o4bobo$3bo6bo3bo3bo 3bo$3ob3o11bobobo$18bobobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ AUTOSTART LOOP 12 GPS 6 THUMBSIZE 2 ]]
Pattern type Oscillator
Oscillator type Shuttle
Number of cells 43
Bounding box 24×7
Period 12
Mod 6
Heat 38
Volatility 0.91
Strict volatility 0.27
Discovered by Robert Wainwright
Year of discovery 1984

Carnival shuttle is a period-12 oscillator that was found by Robert Wainwright in September 1984 (using middleweight emulators at the end, instead of the monograms shown here).[1] It was used to create the first known non-trivial period 24 oscillator, 186P24.

The shuttle itself is a reaction between two t-tetrominos. Its stability requires the suppression of one birth per period at both ends of the shuttle.

There are many ways to stabilise adjacent shuttles:

x = 80, y = 34, rule = B3/S23 42b2ob2o$41bobobobo$41bobobobo20b2o$42bobobo20bobo$44bo20b3o$3ob3o19bo bo13bo2bo18bo3bo$3bo6bo3bo3bo3bo3bobo4bo3bo7bo4bo3bo5bo3b5o$2o3b2o3bob 3o3b3obo6bo3b3obo3bo3bo4b3obo3b3o3b2o$3bo6bo3bo3bo3bo3bobo4bo3bo7bo4bo 3bo5bo3b5o$3ob3o19bobo13bo2bo18bo3bo$44bo20b3o$42bobobo20bobo$41bobobo bo20b2o$2b3o36bobobobo26b2o$3bo38b2ob2o27b2o$3bo$72b6o$2b3o50bo15bo3bo 2bo$22bo10bo9b2o9bobo15b2o3b2o$21bobo8bobo8b2o10bo17bo$22bo10bo5bo33bo bo$bobobo35bo5bo4bo5bobo12bobo$bobobo11bobo5bo4bo5bo4bo4bo6bo4bobo3bo 3bo3bo5bo$bo3bo3bo3bo3bobo4bo6bo3bo6bo3bo6bo3bo6bob3o3bo4bobo$2bobo4b 3obo6bo3bo6bo3bo6bo3bo6bo4bobo3bo3bo3bo5bo$bo3bo3bo3bo3bobo4bo6bo4bo4b o5bo4bo5bobo12bobo$bobobo11bobo5bo4bo5bo36bobo$bobobo32bo5bo10bo17bo$ 22bo10b2o8bobo8bobo15b2o3b2o$21bobo9b2o9bo10bo15bo3bo2bo$22bo49b6o2$ 74b2o$74b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THUMBSIZE 2 ZOOM 8 WIDTH 800 HEIGHT 480 GPS 6 LOOP 12 ]]
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  • Monograms can be shared.
  • Shuttles can be placed head to head.
  • A beehive can be placed in between.

Shuttles can also hassle a beehive-traffic light-loaf component. The shuttle can be stabilised by monograms, middleweight emulators, T-nosed p4s, and a stable beehive push catalyst by Tanner Jacobi.[2][3] The Blocked p4-3 gives the same spark, and thus can be used as a stabilizer too.

Without stabilizations on the ends, a spatial period 12 wick can be constructed. A finite version requires the addition of stabilizations as caps.


  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Tanner Jacobi (December 20, 2020). Re: Results of catalyst tests (discussion thread) at the forums
  3. Aidan F. Pierce (December 20, 2020). Re: Oscillator Discussion Thread (discussion thread) at the forums

External links

  • 43P12.1 at Heinrich Koenig's Game of Life Object Catalogs