46P4H1V0 is an unnamed c/4 orthogonal spaceship discovered by Tim Coe in May 1996. 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. This was later reduced to 88 gliders with a repeat time of 572 ticks due to optimizations by various people.
- ↑ race.rle from Stephen Silver's January 12, 2004 'ships' collection.
- ↑ Martin Grant. Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Matthias Merzenich. Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- 46P4H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs