6 ms·
Watch a robot solve a Rubik's cube in less than half a second
- ecpottinger 7y agoQuestions, what is the max moves to solve a cube? I mean no matter how you scramble it you can always just reverse the scrambling, but there must be a limit to how far you can scramble a solve-able cube. So even in you used a thousand moves to try and scramble it, it is possible to solve in fewer moves.
- gus_massa 7y agoIt's 20 (or 26 depending how you define a move). See http://cube20.org/ http://cube20.org/ Anyway, finding the 20 moves is very difficult and humans use longer path that are composed of parts that are easier to memorize. Probably the typical length is a few hundred of moves. I guess the robot use a similar system. But IIRC there are some intermediate methods that use about 50 moves, that are easy enough to calculate by a computer but too difficult for humans.
- ecpottinger 7y agoThanks.