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x = 6, y = 5, rule = B3/S23 4b2o$5bo$2o2bo$o2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] [[ ZOOM 48 ]]
Pattern type Strict still life
Number of cells 10
Bounding box 6 × 5
Frequency class 19.3
Discovered by Unknown
Year of discovery 1972

Cis-shillelagh is a 10-bit still life.


Cis-shillelagh is the fifty-second most common still life in Achim Flammenkamp's census, being less common than trans-block on long bookend but more common than mirrored dock.[1]

It is the 51st most common still life on Adam P. Goucher's Catagolue, being less common than trans-loaf with tail but more common than trans-mirrored bun. It is the 6th most common still life with 10 cells, being less common than loop but more common than prodigal.[2]

Glider synthesis

On March 21, 2007 Heinrich Koenig found a 4-glider synthesis of this still life.[3]

See also


  1. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on November 7, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.
  3. Dean Hickerson's 2, 3, and 4-glider syntheses pattern collection

External links