Almost knightship

Almost knightship is a partial spaceship discovered by Eugene Langvagen on March 23, 2004.[citation needed] It would have been an elementary knightship if two cells at the back end were not incorrect after the 6th generation, which provided evidence that small elementary knightships may exist within a considerably small bounding box.

Almost knightship
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Pattern type Miscellaneous
Number of cells 67
Bounding box 13×19
Discovered by Eugene Langvagen
Year of discovery 2004

Several more small almost knightships were found by Tomas Rokicki in February 2018, using a SAT solver,[1] of velocities (2,1)c/6 and (2,1)c/7. Further searching by Adam P. Goucher based on these partials led to the finding of a true elementary knightship, Sir Robin.

generation 0 (left) and generation 6 (right) show that the pattern is different by only two cells
gollark: Yep, that's right, some of my code actually obeys some law or other.
gollark: Oh, and in potatOS Lua you can *also* do: `(1 / " ") * string`
gollark: So you can do roughly the same things fairly easily.
gollark: Lua, sadly, doesn't have string split built in, but does have a ton of weird regexy string manipulation functions builtin.
gollark: In PotatOS Lua you can actually do `string / " "`.

See also

References

  1. Tomas Rokicki (February 14, 2018). Four new almost-knightships CGOL (discussion thread) at the ConwayLife.com forums
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