CHESS!!!

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Across
  1. 1. term for the columns on the chessboard
  2. 4. the "Deep" color that IBM named their chess-playing computer in 1997
  3. 6. the most well-known Russian chess champion
  4. 7. term for recording chess moves
  5. 10. the term for a strategy consisting of a series of tactical maneuvers which are often forced
  6. 12. term for the rows on the chessboard
  7. 13. the term when a king can no longer make a legal move
  8. 15. a queen is the most common promotion, followed by this piece
Down
  1. 2. chess is believed to have originated in this country
  2. 3. known collectively as the group of the first ~10 moves
  3. 5. title given to a player of the highest rank
  4. 8. this occurs when a pawn makes it to the 8th rank
  5. 9. term for the tactic which threatens two pieces simultaneously
  6. 11. term for the fastest type of chess game
  7. 14. always makes the first move