Chess puzzle (Advantage)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 O-O 5. Nf3 d5 6. c5 Bg4 7. e3 Ne4 8. Be2
Nxc3 9. bxc3 Nc6 10. h3 Bd7 11. O-O f6 12. Qb3 Be8 13. Qxb7 e5 14. Bg3 Rb8 15.
Qa6 exd4 16. cxd4 Ra8 17. Bb5 Nb4 18. Bxe8 *
Position (FEN): r2qBrk1/p1p3bp/Q4pp1/2Pp4/1n1P4/4PNBP/P4PP1/R4RK1 b - - 0 18
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1275
Best move: Nxa6