Cribbage
| Cribbage | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 92 | ||||||||
| Bounding box | 32 × 21 | ||||||||
| Period | 19 (mod: 19) | ||||||||
| Heat | 33.5 | ||||||||
| Volatility | 0.72 | 0.72 | ||||||||
| Kinetic symmetry | .e | ||||||||
| Discovered by | Mitchell Riley | ||||||||
| Year of discovery | 2023 | ||||||||
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Cribbage, or Riley's p19, is a period-19 oscillator found by Mitchell Riley on July 14, 2023 using CatForce, and was the first period-19 oscillator to be discovered.[1]
On the day of its discovery, iNoMed discovered a pair of successive stator reductions over the original form (first to 96 cells, then to 94),[2] which was subsequently reduced by May13 to a 92-cell form.[3] Each reduction was made by replacing its stators with smaller components.
A 69-glider synthesis of a 100-cell variant of the oscillator was found by Goldtiger997 on the same day.[4]
The name "cribbage" comes from the card game, where 19 is a significant number and somewhat of a meme in the game, being the smallest number of points that is impossible to get in a single round.
| The original form, as initially discovered (click above to open LifeViewer) Catagolue: here |
| The catalyst variants, from the discovery (left), iNoMed's reductions and the current form (right) (click above to open LifeViewer) |
LCM oscillators
Cribbage can form LCM oscillators via either several low-clearance sparks or a billiard table perturbation of one of the large catalysts. The following cases are SKOPs:
| 137P95 with a variant of toaster[5] (click above to open LifeViewer) Catagolue: here |
See also
References
- ↑ Carson Cheng (July 14, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ iNoMed (July 14, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ May13 (July 14, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (July 14, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Period1GliderGun (August 24, 2024). Re: Smallest Known Oscillators to p106 (and Beyond) (discussion thread) at the ConwayLife.com forums
External links
- Cribbage at Adam P. Goucher's Catagolue
- Cribbage at Wikipedia (name origin)
- Patterns
- Oscillators with 92 cells
- Periodic objects with minimum population 92
- Patterns with 92 cells
- Patterns found by Mitchell Riley
- Patterns found in 2023
- Patterns that can be constructed with between 60 and 69 gliders
- Oscillators
- Oscillators with period 19
- Prime-period oscillators
- Oscillators with mod 19
- Oscillators with heat 33
- Oscillators with volatility 0.72
- Oscillators with strict volatility 0.72
- Oscillators with .e symmetry
- Honey farm hasslers