Chess puzzle (Checkmate)
Opening: Slav_Defense, Slav_Defense_Exchange_Variation
Moves: 1. d4 c6 2. c4 d5 3. cxd5 cxd5 4. Nf3 Nf6 5. Nc3 Nc6 6. Bg5 Bf5 7. Qb3 Na5 8.
Qb5+ Bd7 9. Qd3 Nc4 10. Bxf6 exf6 11. Nxd5 Qa5+ 12. Nc3 Nxb2 13. Qe4+ Be6 14.
Qc2 Bb4 15. Rc1 Rc8 16. Qxb2 Rxc3 17. Nd2 Qxa2 18. Qxa2 *
Position (FEN): 4k2r/pp3ppp/4bp2/8/1b1P4/2r5/Q2NPPPP/2R1KB1R b Kk - 0 18
Black to move.
Themes: Hanging Piece Middlegame Mate in 1 
Puzzle rating: 630
Best move: Rxc1#