Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_Normal_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. c5 Nc6 4. Nc3 d5 5. cxd6 Bxd6 6. Bg5 O-O 7. a3 h6 8. Bh4
g5 9. Bg3 Bxg3 10. hxg3 Kh7 11. e3 e5 12. Nf3 Re8 13. Nxg5+ Kg6 14. Bd3+ Kxg5
15. f4+ exf4 *
Position (FEN): r1bqr3/ppp2p2/2n2n1p/6k1/3P1p2/P1NBP1P1/1P4P1/R2QK2R w KQ - 0 16
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1591
Best move: gxf4#