God's Number Is 20 (2010)

Re:God's Number Is 20 (2010) by cyphar on Thursday April 18, 2019 @10:24AM (#19691208)

No, at least not for normal solves. On average most solves will be 40-60 moves, though that's very luck dependent. In the case of the most common CFOP method, F2L (the F in CFOP) makes or breaks most solves because everyone does it intuitively.

However there are 3x3x3 least-moves challenges in most big competitions, but they are much closer to being mathematics problems than practical cubing. You usually get a fairly long amount of time to find the shortest number of moves to solve said cube. The record was beaten recently by Harry Savage with a 17-move solution (note that 20 moves is the maximum number for an ideal solution).

[ Parent | on HN ]

Re:God's Number Is 20 (2010) by drilldrive on Thursday April 18, 2019 @03:01PM (#19693814)

For ideal solve competitions, do we input the cube into a computer to have surety on the ideal solve number?

[ Parent | on HN ]

Re:God's Number Is 20 (2010) by cyphar on Friday April 19, 2019 @12:53AM (#19697184)

I believe so. In addition, for smallest-move competitions you're actually given the scramble moves -- so your job is to apply a bunch of mathematical techniques to shorten the number of moves to the smallest number you can.

[ Parent | on HN ]