46P4H1V0
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| 46P4H1V0 | |||||||||||
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| Pattern type | Spaceship | ||||||||||
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| Number of cells | 46 | ||||||||||
| Bounding box | 21 × 10 | ||||||||||
| Direction | Orthogonal | ||||||||||
| Period | 4 | ||||||||||
| Mod | 4 | ||||||||||
| Speed | c/4 | c/4 | ||||||||||
| Heat | 54.0 | ||||||||||
| Discovered by | Tim Coe | ||||||||||
| Year of discovery | 1996 | ||||||||||
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46P4H1V0 is an unnamed c/4 orthogonal spaceship discovered by Tim Coe in May 1996.[1] It was the smallest known c/4 orthogonal spaceship until the discovery of 37P4H1V0.
It was the first c/4 spaceship for which a complete glider synthesis was found, by Tanner Jacobi and Martin Grant on Febuary 4, 2019 with 105 gliders.[2] This was later reduced to 88 gliders with a repeat time of 572 ticks due to optimizations by various people.[3] Goldtiger997 constructed a 46P4H1V0 gun based on this synthesis on October 22.[4]
See also
References
- ↑ race.rle from Stephen Silver's January 12, 2004 'ships' collection.
- ↑ Martin Grant (February 4, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Matthias Merzenich (February 10, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (October 22, 2019). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
External links
- 46P4H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Spaceships with 46 cells
- Periodic objects with minimum population 46
- Patterns with 46 cells
- Patterns found by Tim Coe
- Patterns found in 1996
- Patterns that can be constructed with between 80 and 89 gliders
- Spaceships
- Spaceships with period 4
- Orthogonal spaceships
- Spaceships with speed c/4
- Spaceships with unsimplified speed c/4
- Spaceships with heat 54
- Spaceships with mod 4
- Non-monotonic spaceships
- Patterns with bilateral orthogonal symmetry
- Unnamed periodic objects