Trans-very long hook with tail: Difference between revisions
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10-cell still lifes: December 1972 via Lifeline Volume 8, page 2 |
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Revision as of 17:28, 30 May 2022
| Trans-very long hook with tail | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 10 | ||||||||
| Bounding box | 7 × 4 | ||||||||
| Frequency class | 27.7 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1972 | ||||||||
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Trans-very long hook with tail is a 10-cell still life.
This still life is comprised of the normally unstable very long hook with a normally unstable tail attached. This is one of two possible isomers, named trans due to the corner part of the hook being farther from the tail; the other isomer, cis-very long hook with tail, has this corner part slightly closer.
Unlike the cis-version, the trans-very long hook with tail can be shrunk down to two smaller still lifes: the long hook with tail and hook with tail. Due to the trans version being the only one which can be shrunk, these two do not have cis-trans prefixes.
It is the second rarest 10-cell still life out of 25, ahead of only the long4 snake.
It is about 25 times as rare as the 9-cell long hook with tail and about 20 times as common as the trans-long3 hook with tail.
It is about 1.4 times as rare as the similar cis-very long hook with tail, which is the third rarest 10-cell still life.
A 5-glider synthesis for this still life was discovered on January 8, 2020.[1]
See also
References
- ↑ Ian07 (January 10, 2020). Re: Soup-based syntheses (discussion thread) at the ConwayLife.com forums
External links
- The 25 ten-bit still-lifes at Mark D. Niemiec's Life Page