Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. Nf3 Bg7 3. c4 Nf6 4. Nc3 O-O 5. e4 d6 6. Bd3 Nbd7 7. Bg5 h6 8. Bh4
g5 9. Bg3 Nh5 10. e5 Nxg3 11. hxg3 dxe5 12. Nxg5 hxg5 *
Position (FEN): r1bq1rk1/pppnppb1/8/4p1p1/2PP4/2NB2P1/PP3PP1/R2QK2R w KQ - 0 13
White to move.
Themes:  Opening  
Puzzle rating: 1590
Best move: Bh7+