Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 d5 2. e3 e6 3. Bd3 Nf6 4. Nd2 Bb4 5. c3 Bd6 6. f4 O-O 7. Ngf3 c5 8. O-O
cxd4 9. cxd4 Nc6 10. Ne5 Nd7 11. Qh5 f5 12. Ndf3 Nf6 13. Qh3 Ng4 *
Position (FEN): r1bq1rk1/pp4pp/2nbp3/3pNp2/3P1Pn1/3BPN1Q/PP4PP/R1B2RK1 w - - 4 14
White to move.
Themes:  Opening  
Puzzle rating: 1893
Best move: Nxg4