Snake pit: Difference between revisions
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DroneBetter (talk | contribs) m Add that filling in the rotor produces the maximum-population 7*7 still life. |
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|h = 4 | |h = 4 | ||
|v = 0.14 | |v = 0.14 | ||
|symmetry = .crc | |||
|rotor = Pole 2 | |rotor = Pole 2 | ||
|discoverer = Mark Niemiec | |discoverer = Mark Niemiec | ||
Revision as of 09:54, 6 August 2024
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Muttering moat | ||||||||
| Billiard table | |||||||||
| Number of cells | 26 | ||||||||
| Bounding box | 7 × 7 | ||||||||
| Period | 2 (mod: 1) | ||||||||
| Heat | 4 | ||||||||
| Volatility | 0.14 | 0.14 | ||||||||
| Kinetic symmetry | .crc | ||||||||
| Rotor type | Pole 2 | ||||||||
| Discovered by | Mark Niemiec | ||||||||
| Year of discovery | 1972 | ||||||||
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Snake pit is a period-2 oscillator made up of four snakes. It has the same rotor as a blinker, with the same external bushing as in fore and back, but with different casing. It was found by Mark Niemiec in 1972.[1]
Filling in the rotor with its cells from both phases produces a 28-cell still life, which is the unique maximum-population still life fitting within a 7 × 7 bounding box.
See also
References
- ↑ Robert Wainwright (October 1972). Lifeline, vol 6, page 3.
External links
- Snake pit at the Life Lexicon
- 26P2.261 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 26 cells
- Periodic objects with minimum population 26
- Patterns with 26 cells
- Patterns found by Mark Niemiec
- Patterns found in 1972
- Patterns that can be constructed with 14 gliders
- Oscillators
- Muttering moats
- Billiard tables
- Oscillators with period 2
- Oscillators with mod 1
- Oscillators with heat 4
- Oscillators with volatility 0.14
- Oscillators with strict volatility 0.14
- Oscillators with .crc symmetry
- Oscillators with rotor Pole 2
- Patterns with 180-degree rotation symmetry
- Non-flipping oscillators that turn 90 degrees
- Semi-natural periodic objects