B'

Face turns: One face: a quarter turn clockwise, ' anticlockwise, 2 a half turn.

The move

1. B'

Also in Face turns

• R
• R'
• R2
• U
• U'
• U2
• F
• F'
• F2
• L
• L'
• L2
• B
• B2
• D
• D'
• D2

All 28 Notation cases