Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 Nf6 2. Nc3 d5 3. Nf3 Nc6 4. Bg5 Ne4 5. Nxe4 dxe4 6. d5 Nb4 7. Qd2 Nxd5 8.
Rd1 exf3 9. Qxd5 Qxd5 10. Rxd5 e6 *
Position (FEN): r1b1kb1r/ppp2ppp/4p3/3R2B1/8/5p2/PPP1PPPP/4KB1R w Kkq - 0 11
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 940
Best move: Rd8#