Chess puzzle (Advantage)
Opening: East_Indian_Defense, East_Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d6 6. Nbd2 Nc6 7. c3 e5 8. e4
Nh5 9. d5 Nf4 10. Bb1 Ne7 11. Re1 f5 12. Nf1 g5 13. Nxg5 Nexd5 14. Bxf4 *
Position (FEN): r1bq1rk1/ppp3bp/3p4/3nppN1/4PB2/2P5/PP3PPP/RB1QRNK1 b - - 0 14
Black to move.
Themes:  Opening  
Puzzle rating: 1304
Best move: Nxf4