Chess puzzle (Crushing)
Opening: Russian_Game, Russian_Game_Modern_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. d4 exd4 4. Qxd4 Nc6 5. Qe3 g6 6. Bd3 Bg7 7. h3 O-O 8.
O-O Re8 9. Nbd2 d5 10. Qf4 Nh5 11. Qh4 *
Position (FEN): r1bqr1k1/ppp2pbp/2n3p1/3p3n/4P2Q/3B1N1P/PPPN1PP1/R1B2RK1 b - - 3 11
Black to move.
Themes:  Opening  
Puzzle rating: 1631
Best move: Bf6