Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Semi-Tarrasch_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c5 5. dxc5 Bxc5 6. Bg5 h6 7. Bh4 dxc4 8. e4
Qxd1+ 9. Rxd1 Ng4 *
Position (FEN): rnb1k2r/pp3pp1/4p2p/2b5/2p1P1nB/2N2N2/PP3PPP/3RKB1R w Kkq - 1 10
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 520
Best move: Rd8#