Chess puzzle (Advantage)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Normal_Variation
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. e5 dxe5 7. Nxe5 Nbd7 8.
Bf4 Nxe5 9. Bxe5 Ng4 10. Bxg7 Kxg7 11. d5 Qd6 12. Be2 a6 *
Position (FEN): r1b2r2/1pp1ppkp/p2q2p1/3P4/2P3n1/2N5/PP2BPPP/R2QK2R w KQ - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1227
Best move: Bxg4