Chess puzzle (Crushing)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Variation
Moves: 1. d4 d5 2. Bf4 e6 3. e3 c5 4. c3 Bd6 5. Bg3 Ne7 6. Bd3 O-O 7. Nf3 Nbc6 8. Nbd2
cxd4 9. exd4 Nf5 10. Qc2 h6 11. Bxf5 exf5 12. Bxd6 Qxd6 13. O-O-O a5 14. Nb3 a4
15. Nc5 b5 16. a3 Na5 17. Rhe1 Nc4 18. Ne5 Re8 19. f4 Ra7 *
Position (FEN): 2b1r1k1/r4pp1/3q3p/1pNpNp2/p1nP1P2/P1P5/1PQ3PP/2KRR3 w - - 1 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1545
Best move: Nxc4