Chess puzzle (Advantage)
Opening: Horwitz_Defense, Horwitz_Defense_Other_variations
Moves: 1. d4 e6 2. Bf4 d5 3. e3 Nf6 4. Nf3 c5 5. c3 Nc6 6. Bd3 c4 7. Bc2 b5 8. a3 Be7
9. Nbd2 Qb6 10. Ne5 O-O 11. Ndf3 h6 12. Nh4 g5 13. Nhg6 *
Position (FEN): r1b2rk1/p3bp2/1qn1pnNp/1p1pN1p1/2pP1B2/P1P1P3/1PB2PPP/R2QK2R b KQ - 1 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1385
Best move: fxg6