Chess puzzle (Advantage)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Orthodox_Variation
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 O-O 6. Be2 Nc6 7. a3 e5 8. d5 Ne7
9. Be3 Ng4 10. Bg5 f5 11. exf5 Bxf5 12. Nh4 *
Position (FEN): r2q1rk1/ppp1n1bp/3p2p1/3PpbB1/2P3nN/P1N5/1P2BPPP/R2QK2R b KQ - 1 12
Black to move.
Themes: Attacking f2 or f7 Opening  
Puzzle rating: 1677
Best move: Nxf2