84P199
| 200P199 | |||||||||
| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
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| Number of cells | 200 | ||||||||
| Bounding box | 58 × 45 | ||||||||
| Period | 199 (mod: 199) | ||||||||
| Heat | 87.5 | ||||||||
| Volatility | 0.96 | 0.96 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Mitchell Riley ljkiernan1 | ||||||||
| Year of discovery | 2022 | ||||||||
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200P199 (or p199 R-pentomino hassler) is a period-199 oscillator found by Mitchell Riley and ljkiernan1 on July 6, 2022 using a symmetric variant of CatForce. While its original 248-cell form (using eater 4 as a catalyst)[1] does not produce any useful sparks, its reduced form with 200 cells[2] (shown to the right) happens to function as a pipsquirter. Despite having relatively low clearance, the spark can still be used to form LCM oscillators.[3] It is currently the highest known prime-period oscillator that does not rely on glider or signal loops, surpassing 74P127 which was discovered just four days earlier.
References
- ↑ Mitchell Riley (July 6, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Mitchell Riley (July 6, 2022). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ 83bismuth38 (July 6, 2022). Message in #cgol on the Conwaylife Lounge Discord server
External links
Categories:
- Patterns
- Oscillators with between 200 and 299 cells
- Periodic objects with minimum population between 200 and 299
- Patterns with between 200 and 299 cells
- Patterns found by Mitchell Riley
- Patterns found by ljkiernan1
- Patterns found in 2022
- Outer-totalistically endemic patterns
- Isotropically endemic patterns
- Oscillators
- Oscillators with period 199
- Prime-period oscillators
- Oscillators with mod 199
- Oscillators with heat 87
- Oscillators with volatility 0.96
- Oscillators with strict volatility 0.96
- Patterns with rectangular orthogonal symmetry
- Sparkers
- Sparkers with period 199
- Domino sparkers
- Strong sparkers
- Pipsquirters
- Unnamed periodic objects