Cis-rotated hook

	Cis-rotated hook
	<a href="/wiki/File:Cisrotatedhook.png" class="image" title="Cis-rotated hook image"><img alt="Cis-rotated hook image" src="/w/images/7/7c/Cisrotatedhook.png" decoding="async" width="145" height="113" /></a>
	<a href="/wiki/File:Cisrotatedhook.png" class="image" title="Cis-rotated hook image"><img alt="Cis-rotated hook image" src="/w/images/7/7c/Cisrotatedhook.png" decoding="async" width="145" height="113" /></a>
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Pattern type	Strict still life
Number of cells	14
Bounding box	7×5
Frequency class	19.1
Discovered by	Unknown
Year of discovery	Unknown
Rules
Outer-totalistic rules	B/S23 – B3678/S012345678
Important rules	Conway Life, HighLife
# of rules	211 = 2048
Isotropic rules	B/S2aek3nr – B2cin34-nz5-jq678/S012345678
Glider synthesis
Fewest gliders	4
Catagolue-generated RLE	cisrotatedhook_synth.rle
Pattern files
Plaintext	cisrotatedhook.cells
RLE	cisrotatedhook.rle
Identifiers
apgcode	xs14_6is079c
Niemiec ID	14.87
Pentadecathlon ID	14.546

Cis-rotated hook (or down bookend down on bookend) is a 14-bit still life.

Commonness

Cis-rotated hook is the fiftieth most common still life in Achim Flammenkamp's census, being less common than trans-loaf with tail but more common than trans-block on long hook.^[1] It is also the fifty-fifth most common object on Adam P. Goucher's Catagolue.^[2]