Chess puzzle (Advantage)
Moves: 1. e3 e5 2. d4 exd4 3. exd4 d5 4. c4 Nf6 5. c5 c6 6. f3 b6 7. b4 a5 8. Bd2 axb4
9. Bxb4 Na6 10. Bxa6 Bxa6 11. Ne2 Qe7 12. Nc3 Qe3 13. Qd2 Qxd2+ 14. Kxd2 bxc5
15. dxc5 Nd7 16. Nd4 Ne5 17. Rhe1 Kd7 18. Na4 Nc4+ 19. Kc3 Rb8 20. g4 g6 21.
Rad1 Bh6 22. h4 Bd2+ *
Position (FEN): 1r5r/3k1p1p/b1p3p1/2Pp4/NBnN2PP/2K2P2/P2b4/3RR3 w - - 1 23
White to move.
Themes:  Middlegame  
Puzzle rating: 900
Best move: Rxd2