Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Accelerated_Panov_Attack
Moves: 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Nxd5 Qxd5 7. d4 Nc6
8. Nf3 Bg4 9. Be2 O-O-O 10. O-O Nxd4 11. Nxd4 Bxe2 12. Nxe2 Qxd1 13. Rxd1 *
Position (FEN): 2kr1b1r/pp2pppp/8/8/8/8/PP2NPPP/R1BR2K1 b - - 0 13
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 461
Best move: Rxd1#