Chess puzzle (Crushing)
Opening: Bird_Opening, Bird_Opening_Other_variations
Moves: 1. f4 f5 2. Nf3 Nf6 3. d4 g6 4. e3 Bg7 5. c4 d5 6. Nc3 e6 7. b3 O-O 8. Ba3 Re8
9. Bd3 Nbd7 10. O-O a5 11. Ne5 b6 *
Position (FEN): r1bqr1k1/2pn2bp/1p2pnp1/p2pNp2/2PP1P2/BPNBP3/P5PP/R2Q1RK1 w - - 0 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1268
Best move: Nc6