CHESS

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Across
  1. 6. to change position
  2. 7. a place in a chessboard
  3. 8. when there is a just one exit for a king
  4. 10. to check (a chess opponent's king) so that escape is impossible
  5. 11. in a straight and sloping way that is not horizontal or vertical
  6. 12. moving, tending, or leading toward a position in front
Down
  1. 1. to move parallel to the horizon
  2. 2. something that rises straight up
  3. 3. horizontal row
  4. 4. towards the direction that is opposite to the one in which you are facing or opposite to the usual direction
  5. 5. type of board used for the intellectual game
  6. 8. the game of minds
  7. 9. we play by them
  8. 13. vertical row