Line of three

Not to be confused with blinker.

Line of three
x = 1, y = 3, rule = B3/S23 o$o$o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ THUMBSIZE 3 ZOOM 63 ]]
View static image
Pattern type	Still life component
Number of cells	3
Bounding box	3 × 1
Static symmetry	Unspecified
Discovered by	John Conway
Year of discovery	1969
Rules Outer-totalistic rules B3/S2 – B345678/S02345678 # of rules 212 = 4096 Isotropic rules B3i/S2i – B2-a345678/S01c2345678
Pattern files Plaintext lineofthree.cells RLE lineofthree.rle

A line of three^{[citation needed]} is a three cell leading edge on an object or part of object.

A line of three consecutive cells can be a segment known as "line" in certain still lifes; the most basic of these being integral sign but can also be used to connect any number of pre-blocks, tubs, beehives, loaves, mangoes, hooks, claws, etc. together. One example is boat line hook.

x = 7, y = 7, rule = LifeHistory 5.A$4.A.A$3.C.A$3.C$.A.C$A.A$.A! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 WIDTH 600 THUMBSIZE 2 ZOOM 42 THEME LifeHistory ]]

The line of three (white) in tub trans-line tub (click above to open LifeViewer)

See also

• Hook line tub
• Long hook line tub
• Tub trans-line tub
• Amphisbaena
• Asymmetric amphisbaena
• Cis-boat amphisbaena
• Trans-boat amphisbaena