Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. g3 g6 3. Bg2 c6 4. Nf3 Bg7 5. Nc3 d5 6. cxd5 Nxd5 7. d4 O-O 8. e4
Nxc3 9. bxc3 c5 10. Be3 Nc6 11. O-O Bg4 12. e5 Qc7 13. Qd2 Rfd8 14. Rfd1 cxd4
15. cxd4 Bxf3 16. Bxf3 Nxd4 17. Bxd4 Bxe5 18. Qe3 Bxd4 19. Rxd4 Rxd4 20. Qxd4
Rd8 21. Qxa7 Qc3 22. Rb1 Qxf3 23. Rxb7 *
Position (FEN): 3r2k1/QR2pp1p/6p1/8/8/5qP1/P4P1P/6K1 b - - 0 23
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 984
Best move: Rd1#