Quadpole tie ship

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Quadpole tie ship
2o8b$obo7b$b2o7b$3b2o5b$3bobo4b2$5bobo2b2$7bobo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 THUMBSIZE 2 ]]
Pattern type Oscillator
Oscillator type Muttering moat
Family Barberpole
Number of cells 16
Bounding box 10×10
Frequency class 25.5
Period 2
Mod 1
Heat 8
Volatility 0.40
Strict volatility 0.40
Rotor type Pole 4
Discovered by Unknown
Year of discovery Unknown
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Quadpole tie ship (or quadpole on ship) is a period-2 oscillator composed of a ship diagonally touching a quadpole. A 6-glider synthesis for this oscillator was found in July 2020.[1]


Quadpole on ship is the about the thirteenth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than the mold but more common than tripole.[2]


bo$o$o$b3o2$4b2o$4bobo$5b2o$7b2o$7bobo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 ]]
The most common way by far for a quadpole to form is from a century predecessor hitting a ship. When this reaction occurs with a ship-tie, it creates a quadpole tie ship. (click above to open LifeViewer)

See also


  1. Ian07 (July 18, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
  2. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.

External links

  • 16P2.40 at Heinrich Koenig's Game of Life Object Catalogs