Officers may move in any single orthoganal direction as well, up to two squares. See the diagram to the left, in the lower right corner. The Officer O may move to any X shown, provided the path is unobstructed. Officers may never move diagonally. Pawns may move only one square, but it can be to any unoccupied adjacent square, including diagonally adjacent ones.
Pawns are the only piece capable of diagonal movement.
See the diagram to the right. The Pawn P may move to any X shown, provided the square is unoccupied. Capture Capture in Mastery is comparable to capture in Chess. That is to say, it's identical to a Move, except that the destination square contains an enemy piece, which is removed from the board. The path toward the enemy piece must still be unobstructed.