Chess puzzle (Advantage)
Moves: 1. e4 e6 2. d4 d5 3. Nc3 c5 4. exd5 exd5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Nf3 cxd4
8. Qxd4 Nf6 9. Bg5 Qe6+ 10. Qe3 Qxe3+ 11. fxe3 Nbd7 12. O-O-O Bc5 13. Nxd5 Nxd5
14. Rxd5 f6 15. Rhd1 O-O-O 16. Bf4 g5 17. Bd6 Bxe3+ 18. Kb1 Nb6 19. R5d3 Nc4
20. Rc3 b5 21. b3 Bf4 22. Bxf4 *
Position (FEN): 2kr3r/p6p/5p2/1p4p1/2n2B2/1PR2N2/P1P3PP/1K1R4 b - - 0 22
Black to move.
Themes: Hanging Piece, Queenside Attack Middlegame  
Puzzle rating: 1241
Best move: Rxd1+