Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 a6 5. Nc3 Nc6 6. Qd1 Nf6 7. Bd3 d6 8. h3
Be7 9. O-O Qc7 10. Bg5 b6 11. Ne2 d5 12. exd5 Nxd5 13. Bxe7 Ncxe7 14. Qd2 Bb7
15. Ned4 Nf6 16. Rfe1 O-O 17. c3 Rfd8 18. Qc2 g6 19. Ne5 Ned5 20. Re2 Nf4 21.
Re3 Nxd3 22. Qxd3 Rd5 23. Rae1 Rad8 24. Qb1 Nd7 25. Nef3 Nf6 26. Ne5 Nh5 27.
Qc2 Ng7 28. Nef3 Nf5 29. Nxf5 Rxf5 30. Nd4 *
Position (FEN): 3r2k1/1bq2p1p/pp2p1p1/5r2/3N4/2P1R2P/PPQ2PP1/4R1K1 b - - 1 30
Black to move.
Themes:  Middlegame  
Puzzle rating: 1300
Best move: Rxd4