I have been trying to find an implementation of Korf's Rubik's cube solving algorithm in python as I am making a project where I am comparing algorithm efficiency. Unfortunately, I haven't been able to find any implementation so far, does anyone have any examples of Korf's algorithm in Python?
Korf's Rubik's Cube Solving Algorithm Implemented in Python?
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Korf's algorithm is not the best method for an optimal solver for Rubik's cube. It is far better to implement an algorithm which exploits the symmetries of the cube which leads to smaller sizes of the pruning tables. Michael Reid's optimal solver algorithm is best suited. It uses phase 1 of the two-phase algorithm (which can exploit 16 cube symmetries) in three different directions to exploit all 48 cube symmetries. The pruning depth for IDA* is considerably higher than with Korf's method on average.
I am sceptical if Python if fast enough though. I may give it a try since I implemented my two-phase algorithm in Python and it should not be too difficult to adapt this code.