Chess puzzle (Crushing)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d3 a6 5. Nf3 g6 6. Be3 Nc6 7. Qd2 Nf6 8.
O-O-O Bg7 9. Bh6 O-O 10. Bxg7 Kxg7 11. Ne4 Nxe4 12. dxe4 Qxd2+ 13. Rxd2 Be6 14.
Be2 Nb4 15. b3 Nxa2+ 16. Kb2 Nb4 17. Bc4 Bxc4 18. bxc4 b5 19. cxb5 axb5 20. Rd7
c5 21. Rxe7 *
Position (FEN): r4r2/4Rpkp/6p1/1pp5/1n2P3/5N2/1KP2PPP/7R b - - 0 21
Black to move.
Themes:  Endgame  
Puzzle rating: 913
Best move: Ra2+