Rubik's cube CLI game written in Fortran
git clone --recursive https://github.com/JeffIrwin/rubik
cd rubik
./build.sh
time ./build/rubik
The prefix time is unnecessary, but you might be curious how long it takes you to solve.
Enter h for help during gameplay.
The faces of the cube are labelled right, up, left, down, front, and back. The case sensitive letters R, U, L, D, F, and B will turn their respective face clockwise as if you were looking at that face.
The cube can be solved using only those six commands. You may enter a series of moves on one line, separated by spaces (max 1000 characters).
To speed things up, you may append any of those six commands with an apostrophe (') to turn the face counterclockwise, or a number two (2) to turn the face twice, e.g. R' or R2.
Lowercase moves turn a face and its adjacent middle slice, e.g. r, u, l, d, f, and b.
To rotate the whole cube about an axis, enter x, y, or z. All axis rotations are left-handed, i.e. x rotates on R, y rotates on U, and z rotates on F. As above, you may also use e.g. x', or x2 to rotate by other degrees. This is useful as you may want begin solving with the first layer on top, and then rotate the cube upside-down (x2 or equivalently z2) to finish with the last layer on top. During other steps, rotating about y is helpful to see an edge or corner piece of interest near the front view.
Slice turns are M, E, and S. M turns the middle layer in the L direction, E turns the equatorial layer in the D direction, and S turns the standing layer in the F direction.
This CLI game is almost impossible to play without a physical cube in front of you to aid in muscle memory. For help, here are some algorithms that can be copy-pasted into gameplay.
If you don't know these algorithms, you're gonna have a bad time.
Middle layer step, moving an edge piece from the top to the middle:
Upper-left to front-right:
R U' R' U' F' U F
Upper-right to front-left:
L' U L U F U' F'
Top step, top edge orientation:
F R U R' U' R U R' U' F'
Top step, top edge permutation (repeat as necessary then follow by a final U):
R U R' U R U2 R'
Top step, top corner permutation:
U R U' L' U R' U' L
Top step, top corner orientation:
R' D' R D