Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bg5 h6 8. Bh4
g5 9. Bg3 Bg7 10. h3 Ne5 11. Qe2 Nbc6 12. O-O-O Nxd4 13. Rxd4 Qb6 14. Rd1 Be6
15. Nd5 Qa5 16. Kb1 Rc8 17. f4 gxf4 18. Bxf4 Nc4 19. c3 Nxb2 *
Position (FEN): 2r1k2r/1p2ppb1/p2pb2p/q2N4/4PB2/2P4P/Pn2Q1P1/1K1R1B1R w k - 0 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1286
Best move: Qxb2