Chess puzzle (Crushing)
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 Nd7 5. Bf4 Qa5+ 6. c3 e6 7. Nbd2 c5 8. a4 a6
9. Be2 cxd4 10. O-O dxc3 11. Nb3 Qb6 12. bxc3 Nc5 13. Be3 Qc7 14. Rb1 Ne4 15.
Bd4 Nxc3 16. Rc1 Nxe2+ 17. Qxe2 Qd7 18. Bb6 Ne7 19. Rc7 Qxa4 20. Nc5 Qb4 21.
Rxb7 Nc6 *
Position (FEN): r3kb1r/1R3ppp/pBn1p3/2NpPb2/1q6/5N2/4QPPP/5RK1 w kq - 1 22
White to move.
Themes:  Middlegame  
Puzzle rating: 1918
Best move: Nxa6