Chess puzzle (Advantage)
Opening: Benoni_Defense, Benoni_Defense_Old_Benoni
Moves: 1. d4 c5 2. d5 d6 3. Nc3 g6 4. e4 Bg7 5. Bb5+ Bd7 6. a4 a6 7. Bxd7+ Qxd7 8. Nf3
Qc7 9. O-O Nd7 10. a5 Ngf6 11. Ra3 O-O 12. Nd2 b5 13. axb6 Nxb6 14. Na4 Nxa4
15. Rxa4 Nd7 16. Qe2 a5 17. Nc4 Ra7 18. Bd2 Rfa8 19. Rfa1 Bxb2 *
Position (FEN): r5k1/r1qnpp1p/3p2p1/p1pP4/R1N1P3/8/1bPBQPPP/R5K1 w - - 0 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1484
Best move: Nxb2