Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_London_System
Moves: 1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 4. e3 Nc6 5. c3 e6 6. Nbd2 Bd6 7. Bd3 Bxf4 8.
exf4 cxd4 9. cxd4 Qb6 10. Nb3 O-O 11. O-O Nh5 12. Bxh7+ *
Position (FEN): r1b2rk1/pp3ppB/1qn1p3/3p3n/3P1P2/1N3N2/PP3PPP/R2Q1RK1 b - - 0 12
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 879
Best move: Kxh7