Chess puzzle (Crushing)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8.
Bb2 O-O 9. Be2 Bg4 10. O-O Bxf3 11. Bxf3 Qb6 12. Rb1 cxd4 13. cxd4 Rd8 14. e5
Nc6 15. Ba3 Qxd4 16. Qxd4 Nxd4 17. Bxe7 Nxf3+ 18. gxf3 Rd7 19. Bd6 Rad8 20. Rb3
b6 21. Rc3 *
Position (FEN): 3r2k1/p2r1pbp/1p1B2p1/4P3/8/2R2P2/P4P1P/5RK1 b - - 1 21
Black to move.
Themes:  Endgame  
Puzzle rating: 1550
Best move: Rxd6