Green flag. Click on the puzzle (pocket cube, Rubik's cube, pyraminx, skewb, Rubik's revenge) that you want to use. Click "Ready!" when scrambled. Press space or click mouse once after inspection and again after solving.
I know that notation for the Rubik's revenge (4x4 cube) varies from source to source so here's what I used: R F U etc. turn the face like on a 3x3 r f u etc. turn the layer directly inward from the face which the letter represents wR wF wU etc. turn half of the cube like on a 2x2 M is (r l') S is (f b') E is (u d')
