Bi-block

Bi-block
x = 5, y = 2, rule = B3/S23 2ob2o$2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
View static image
Pattern type	Pseudo still life
Number of cells	8
Bounding box	5 × 2
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S3 – B35678/S012345678 # of rules 213 = 8192 Isotropic rules B/S3a – B1e2-ac34-i5678/S012345678
Glider synthesis Fewest gliders 2 Catagolue-generated RLE synthesis Uploaded synthesis RLE biblock_synth.rle
Pattern files Plaintext biblock.cells RLE biblock.rle
Identifiers apgcode xs8_rr

The bi-block is a common formation of two blocks and the smallest and most common pseudo still life. Similar pseudo still lifes can be formed by considering any rectangular array of blocks, some of which are shown below.

Image gallery

A tri-block RLE: here

File:Block of blocks.png A 2×3 group of blocks RLE: here

2bo$2obo$o3bo$b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 8 THUMBSIZE 2 ]] A common predecessor of the bi-block plus one other unrelated block. (click above to open LifeViewer)

External links

• Bi-block at the Life Lexicon

• Bi-block at Adam P. Goucher's Catagolue (pseudo-object)