Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Normal_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 b6 5. a3 Bb7 6. g3 c5 7. Bg2 cxd4 8. Qxd4
Bc5 9. Qd1 O-O 10. cxd5 Nxd5 11. Nge2 Nxc3 12. Qxd8 Rxd8 13. Bxb7 *
Position (FEN): rn1r2k1/pB3ppp/1p2p3/2b5/8/P1n1P1P1/1P2NP1P/R1B1K2R b KQ - 0 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 528
Best move: Rd1#