Pre-block: Difference between revisions
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==External links== | ==External links== | ||
{{LinkLexicon|lex_p.htm#preblock}} | {{LinkLexicon|lex_p.htm#preblock}} | ||
{{Symmetry|diagonal2}} | {{Symmetry|diagonal2}} | ||
Revision as of 01:36, 3 December 2020
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| Pattern type | Miscellaneous | ||||||||
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| Number of cells | 3 | ||||||||
| Bounding box | 2 × 2 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | John Conway | ||||||||
| Year of discovery | 1970 | ||||||||
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Pre-block (or latent block), a triomino, is a common parent of the block. Given its compactness and distinctive form, it is a recognizable component of many other patterns, such as boat, ship, aircraft carrier, block and glider or snake; a mirrored pair comprise one phase of a beacon.
The pre-block is similar to the tub, boat, beehive and such in the sense that it can be augmented with items like tails, as in eater 1 and integral sign.
See also
External links
- Pre-block at the Life Lexicon