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
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>4$16bo$11b2o2bo$11bob2o$10bo5b2o$6bobo2bo$5bo$5bo3bo2b3ob2o$5bo3bo4bo$ 10bob2o$6bo3bob2o$5b2ob3o$9b2obo$5b2o2b3o$5b2obo$8b2o4b2o$6b3o$7bo2b3o b2o$8b2o2b2o$9b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] <nowiki>#C [[ AUTOSTART GPS 2 THUMBSIZE 2 LOOP 7 PAUSE 2 T 6 PAUSE 2 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
View static image
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: That would take about ten minutes.
gollark: Can't, the backdoors are dead somehow.
gollark: It's secure.
gollark: `ls` and see if they are actually there?
gollark: Is there an error of some sort I can use to debug...?

See also

References
  1. Tomas Rokicki (February 14, 2018). Four new almost-knightships CGOL (discussion thread) at the ConwayLife.com forums
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.