Tail

Tail
x = 2, y = 3, rule = B3/S23 o$o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
View static image
Pattern type	Miscellaneous
Number of cells	4
Bounding box	2 × 3
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Pattern files Plaintext tail.cells RLE tail.rle

Tail (sometimes referred to as L or J) is a tetromino and predecessor of the beehive. It can often be attached to still lifes to create a larger still life (eg. tub with tail, beehive with tail). Even more important are the ways in which it may be attached to a marginally stable object of any kind to obtain overall stability while suppresing (or possibly exploiting) its own spark. The simplest such example is eater 1, in which a tail and a pre-block mutually stabilize one another. A tail can also stabilize one end of a fuse (e.g. as in eg. fuse with two tails).

See also

• Cover
• Hook with tail
• Hat
• Loop
• Anvil
• Spiral