RubiksClockSolver

Rubik's Clock Solver written in Python

Usage

Set up

$ python create_array.py

Please wait few minutes. Four CSV files are created.

How to Use in Code

Sample code:

from solver import solver
# Please wait few seconds before initialized
scrambled_cube = [8, 3, 3, 10, 9, 11, 6, 4, 8, 9, 3, 10, 3, 9]
# WCA scramble for this cube: UR6+ DR5- DL5- UL3+ U4+ R6+ D1- L3- ALL5+ y2 U6+ R0+ D5- L5+ ALL3- DR
solution = solver(scrambled_cube)
print(solution)
# ['dddd d -4', 'Uddd U 6', 'ddUd U 1', 'ddUU U 4', 'UUUd d -5', 'UUUd U 1', 'UUdU d 6', 'UUdU U -3', 'dUUU d 1']
print(' / '.join(solution))
# dddd d -4 / Uddd U 6 / ddUd U 1 / ddUU U 4 / UUUd d -5 / UUUd U 1 / UUdU d 6 / UUdU U -3 / dUUU d 1

scrambled_cube is the scramble. Each index is related to each clock. Details:

clock numbering:
upper
 5  0  6
 1  2  3
 7  4  8

lower
 6  9  5
10 11 12
 8 13  7

solved state: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

solution is the solution of the scramble. The notation is:

The first string means the state of pins, which is numbered as below.

pin numbering:
upper face
0 1
2 3

U means the pin is pulled, d means pushed.

The second character means which face to rotate. U means upper face, d means the lower face.

The following number is how many times to rotate. +3 means 90 degrees clockwise, -1 means 30 degrees counterclockwise.

For example, Uddd U 6 means UL 6+, and dUUU d 3 means y2 UR 3- shortly in WCA scramble.

Is this solver optimal?

Please see this graph. This is made by test_statics.py and the number of solves is 1000.

The average rotation of this solver is 9.55, while 9.43 if optimal.

I think this solver rarely returns detour solutions.

How fast is this solver?