Tail

Tail
x = 2, y = 3, rule = B3/S23 o$o$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
View static image
Pattern type	Still life component
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 great-grandparent of the beehive. It can often be attached to still lifes to create a larger still life. 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).

As a still life component

A green background indicates that the object the tail is added to is stable without it; a red background indicates this is not the case.

Object		Population	Other part
	Eater 1	7		Pre-block
	Tub with tail	8		Tub
	Hook with tail		File:Hook.png	Hook
	Cis-boat with tail	9		Boat
	Trans-boat with tail
	Long hook with tail		File:Longhook.png	Long hook
	Cis-barge with tail	10		Barge
	Trans-barge with tail
	Beehive with tail			Beehive
	Claw with tail			Claw
File:Verylonghookwithtail.png	Very long hook with tail		File:Verylonghook.png	Very long hook

See also

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