Chess puzzle (Advantage)
Opening: Rat_Defense, Rat_Defense_Small_Center_Defense
Moves: 1. e4 d6 2. d4 e6 3. c4 Ne7 4. Nc3 a6 5. d5 e5 6. h3 Ng6 7. Nf3 Nd7 8. Bd3 Be7
9. Bd2 Nf6 10. b4 b6 11. a4 Bd7 12. b5 a5 13. g4 Nxg4 *
Position (FEN): r2qk2r/2pbbppp/1p1p2n1/pP1Pp3/P1P1P1n1/2NB1N1P/3B1P2/R2QK2R w KQkq - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1385
Best move: hxg4