Load up a single player game, making sure your colour is white. Once you're in the game, follow these moves
Move 1: Move the Pawn from E2 to E3 or E4 (either will work)
Move 2: Move the Bishop from F1 to B6
If a piece occupies that spot, just capture it, as you only need to land on the spot with said piece
This should also net you the Absolute Pin achievement, which is a secret achievement, as long as the pawn in D7 has not been moved
Note - B5 is a white spot, so you will only be able to use the Bishop on the white space