Chess puzzle (Advantage)
Opening: Polish_Defense, Polish_Defense_Other_variations
Moves: 1. d4 b5 2. e4 b4 3. Nf3 e6 4. a3 c5 5. axb4 cxb4 6. Bb5 a5 7. Ne5 Ne7 8. Qf3
f6 9. Ng4 Bb7 10. Nxf6+ *
Position (FEN): rn1qkb1r/1b1pn1pp/4pN2/pB6/1p1PP3/5Q2/1PP2PPP/RNB1K2R b KQkq - 0 10
Black to move.
Themes:  Opening  
Puzzle rating: 845
Best move: gxf6