A standard Rubik's Cube is shown in 3-D and also unfolded to identify the specific Tile-face/Vector numbering.
The faces are White-Up / Red-Left / Blue-Front / Orange-Right / Yellow-Down / Green-Back (ULFRDB)
Moves are denoted as F for clockwise rotation of the Front face. F' is CCW and F2 is F twice. The loaded function r_new=rubick_rot(mov,r) implements moves 1-18: UFDLBRU'F'D'L'B'R'U2F2D2L2B2R2.
Input: (rubik)
rubik: row vector of size 54
(The cube started [L=0,U=1,F=2,D=3,B=4,R=5] and then received one or two face moves.
Output: mov (A row vector of one or two of values {1:18})
mov: is a vector values 1:18 representing the moves in order to fix the cube: UFDLBRU'F'D'L'B'R'U2F2D2L2B2R2
  • Example:
  • If the cube was randomized by [1 9] UD', the one and only 2 move answer is [3 7] DU' which are the complements in reverse order.
  • Minimum moves is also required. Scramble by 13(U2) should return a [13], not [1 1] or [7 7]
  • Verifications will be by executing your move vector against the provided rubik and checking number of moves.
The function rubik_rot(mov,r) is available for usage
This is the next incremental solution step: Move optimization.
Additional Challenges will be solving the cube at even deeper depths for time and minimizing face moves utilized. This depth does not justify a time check.
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Last Solution submitted on Apr 17, 2022

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Alfonso Nieto-Castanon @bmtran (Bryant Tran) James William

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