Chess puzzle (Checkmate)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Declined_Variation
Moves: 1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng8 4. d4 d6 5. Bb5 Bg4 6. d5 a6 7. dxc6 axb5 8.
cxb7 Rb8 9. Qd5 dxe5 10. Qxd8+ Rxd8 11. Nxe5 *
Position (FEN): 3rkbnr/1Pp1pppp/8/1p2N3/6b1/8/PPP2PPP/RNB1K2R b KQk - 0 11
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 400
Best move: Rd1#