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x = 4, y = 5, rule = B2n3/S23-q 2b2o2$o2bo2$3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 8 1/8 1/4 THUMBSIZE 3 GPS 8 ]]
Pattern type Spaceship
Number of cells 7
Bounding box 4×6
Direction Oblique
Period 8
Mod 8
Speed (2,1)c/8
Speed (unsimplified) (2,1)c/8
Heat 8
Discovered by Hunting
Year of discovery 2020

The lepa (also referred to as knightship[1] in the early 2020) is a (2,1)c/8 spaceship in LeapLife. It's the only known oblique spaceship in LeapLife, and the first, smallest, most common spaceship in LeapLife that does not work in Conway's Game of Life.

A glider can be temporarily seen at the front of the ship.[2]


Hunting proposed a 5-glider synthesis at the day of discovery based on a reaction from soup. Later, Naszvadi found a 4-glider synthesis using a different reaction, which is further improved to 3 gliders later.[3] A gun was constructed by cvojan immediately after the discovery of the period-22 glider gun. [4]


  1. JP21 (2020-02-06). Re: LeapLife (B2n3/S23-q) (discussion thread) at the forums
  2. Moosey (2020-01-25). Re: LeapLife (B2n3/S23-q) (discussion thread) at the forums
  3. Naszvadi (2020-01-23). Re: LeapLife (B2n3/S23-q) (discussion thread) at the forums
  4. cvojan (2020-01-25). Re: LeapLife (B2n3/S23-q) (discussion thread) at the forums

External links