https://www.speedsolving.com/wiki/api.php?action=feedcontributions&feedformat=atom&user=Rokicki 2026-10-23T15:34:28Z User contributions MediaWiki 1.43.8 https://www.speedsolving.com/wiki/index.php?title=Superflip_plus_fourspot&diff=40869 2019-11-15T19:10:29Z

<p>Rokicki: Fix a factual error and add quarter turn results.</p> <hr /> <div>Superflip plus fourspot is the only currently known 3x3x3 position to require 26 moves in the quarter-turn metric. It and the two (distinct modulo symmetry) positions immediately adjacent are the only positions known to require at least 25 moves in the quarter-turn metric. If any other positions require more than 24 moves, they are positions that have no symmetry.<br /> <br /> In the half-turn metric it is one of the known distance-20 positions, but each of the 1472 length-20 half-turn-metric <br /> solutions has length 28 in the quarter-turn metric, so there is no move sequence for this position that is simultaneously length 20 in the half-turn metric and length 26 in the quarter-turn metric.</div>

Rokicki https://www.speedsolving.com/wiki/index.php?title=Superflip_plus_fourspot&diff=40868 2019-11-13T01:47:40Z

<p>Rokicki: Wrote initial page to record fact that every length-20 HTM solution is length-28 in the QTM.</p> <hr /> <div>Superflip plus fourspot is the only currently known 3x3x3 position to require 26 moves in the quarter-turn metric. It and the three (distinct modulo symmetry) positions immediately adjacent are the only positions known to require at least 25 moves in the quarter-turn metric.<br /> <br /> In the half-turn metric it is one of the known distance-20 positions, but each of the 1472 length-20 solutions has length 28 in the quarter-turn metric, so there is no move sequence for this position that is simultaneously length 20 in the half-turn metric and length 26 in the quarter-turn metric.</div>

Rokicki