Singmaster ENG Notation    
Face Twists Mid-Layer Twists Cube Rotations
U U Clockwise 90° twist of the upper face D D Clockwise 90° twist of the lower (down) face - - Clockwise 90° twist of the middle layer parallel to the lower (down) face - - Clockwise 90° rotation of the whole cube parallel to the lower (down) face
U' U' Anti-clockwise 90° twist of the upper face D' D' Anti-clockwise 90° twist of the lower (down) face - - Anti-clockwise 90° twist of the middle layer parallel to the lower (down) face - - Anti-clockwise 90° rotation of the whole cube parallel to the lower (down) face
U2 U2 180° twist of the upper face D2 D2 180° twist of the lower (down) face - - 180° twist of the middle layer parallel to the lower (down) face - - 180° rotation of the whole cube parallel to the lower (down) face
R R Clockwise 90° twist of the right face L L Clockwise 90° twist of the left face - - Clockwise 90° twist of the middle layer parallel to the right face - - Clockwise 90° rotation of the whole cube parallel to the right face
R' R' Anti-clockwise 90° twist of the right face L' L' Anti-clockwise 90° twist of the left face - - Anti-clockwise 90° twist of the middle layer parallel to the right face - - Anti-clockwise 90° rotation of the whole cube parallel to the right face
R2 R2 180° twist of the right face L2 L2 180° twist of the left face - - 180° twist of the middle layer parallel to the right face - - 180° rotation of the whole cube parallel to the right face
F F Clockwise 90° twist of the front face B B Clockwise 90° twist of the back face - - Clockwise 90° twist of the middle layer parallel to the front face - - Clockwise 90° rotation of the whole cube parallel to the front face
F' F' Anti-clockwise 90° twist of the front face B' B' Anti-clockwise 90° twist of the back face - - Anti-clockwise 90° twist of the middle layer parallel to the front face - - Anti-clockwise 90° rotation of the whole cube parallel to the front face
F2 F2 180° twist of the front face B2 B2 180° twist of the back face - - 180° twist of the middle layer parallel to the front face - - 180° rotation of the whole cube parallel to the front face
Notation by
David Singmaster		 Notation name
Singmaster ENG		 Language
English		 Publications
Notes on Rubik's 'Magic Cube'
1979, 5th edition by Enslow Publishers,
Hillside (New Jersey, USA) 1980