Difference between revisions of "Almost knightship"
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|rulespecial = [[Conway's Game of Life|Conway Life]] | |rulespecial = [[Conway's Game of Life|Conway Life]] | ||
|rle = true | |rle = true | ||
|viewerconfig = #C [[ | |viewerconfig = #C [[ AUTOSTART GPS 2 THUMBSIZE 2 LOOP 7 PAUSE 2 T 6 PAUSE 2 ]] | ||
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'''Almost knightship''' is a partial [[spaceship]] discovered by Eugene Langvagen on March 23, 2004. It would have been an elementary [[knightship]] if two cells at the back end were not incorrect after the 6th generation. | '''Almost knightship''' is a partial [[spaceship]] discovered by Eugene Langvagen on March 23, 2004. It would have been an elementary [[knightship]] if two cells at the back end were not incorrect after the 6th generation. | ||
It provides evidence that small elementary knightships may exist within a considerably small bounding box. | It provides evidence that small elementary knightships may exist within a considerably small bounding box. | ||
Several more small almost knightships were found by [[Tomas Rokicki]] in February {{year|2018}}, using a SAT solver.<ref name="thread3272" /> Further searching by [[Adam P. Goucher]] based on these partials led to the finding of a true elementary knightship, [[Sir Robin]]. | |||
==Image gallery== | ==Image gallery== | ||
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|position = left | |position = left | ||
|caption = Evolution | |caption = Evolution | ||
}} | }}<br style="clear: both;" /> | ||
==See also== | |||
* [[Sir Robin]] | |||
==References== | |||
<references> | |||
<ref name="thread3272">{{LinkForumThread | |||
|date = February 14, 2018 | |||
|accessdate = February 15, 2018 | |||
|format = ref | |||
|f = 2 | |||
|t = 3272 | |||
|title = Four new almost-knightships CGOL | |||
}}</ref> | |||
</references> | |||
==External links== | |||
{{LinkLexicon|lex_a.htm#almostknightship}} | |||
Revision as of 23:58, 30 December 2018
| Almost knightship | |||||
| View static image | |||||
| Pattern type | Miscellaneous | ||||
|---|---|---|---|---|---|
| Number of cells | 67 | ||||
| Bounding box | 13 × 19 | ||||
| Discovered by | Eugene Langvagen | ||||
| Year of discovery | 2004 | ||||
| |||||
Almost knightship is a partial spaceship discovered by Eugene Langvagen on March 23, 2004. It would have been an elementary knightship if two cells at the back end were not incorrect after the 6th generation.
It provides evidence that small elementary knightships may exist within a considerably small bounding box.
Several more small almost knightships were found by Tomas Rokicki in February 2018, using a SAT solver.[1] Further searching by Adam P. Goucher based on these partials led to the finding of a true elementary knightship, Sir Robin.
Image gallery
 generation 0 (left) and generation 6 (right) show that the pattern is different by only two cells |
Evolution
See also
References
- ↑ Four new almost-knightships CGOL (discussion thread) at the ConwayLife.com forums
External links
- Almost knightship at the Life Lexicon