Chess puzzle (Crushing)
Moves: 1. Nf3 c5 2. c4 g6 3. Nc3 Bg7 4. d3 Nc6 5. e3 d6 6. Be2 e5 7. a3 Nge7 8. O-O
O-O 9. Rb1 a6 10. b4 cxb4 11. axb4 f5 12. Bd2 d5 13. b5 axb5 14. cxb5 Na5 15.
d4 e4 16. Ne5 Bxe5 17. dxe5 Nc4 18. Bc1 Nxe5 19. Qb3 Be6 20. Rd1 Qb6 21. Qb2 d4
22. exd4 Ra2 *
Position (FEN): 5rk1/1p2n2p/1q2b1p1/1P2np2/3Pp3/2N5/rQ2BPPP/1RBR2K1 w - - 1 23
White to move.
Themes:  Middlegame  
Puzzle rating: 1607
Best move: Nxa2