Chess puzzle (Checkmate)
Opening: Scandinavian_Defense, Scandinavian_Defense_Mieses-Kotroc_Variation
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Nf3 Bf5 5. d4 e6 6. Be2 Nf6 7. O-O Nd5 8.
Bd2 Bb4 9. Nxd5 Bxd2 10. Qxd2 Qxd5 11. c4 Qd7 12. Rfe1 Nc6 13. d5 exd5 14. Bd3+
Ne7 15. cxd5 Qxd5 16. Bxf5 Qxf5 17. Rad1 Qf6 18. Qd7+ Kf8 19. Qd8+ Rxd8 *
Position (FEN): 3r1k1r/ppp1nppp/5q2/8/8/5N2/PP3PPP/3RR1K1 w - - 0 20
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 603
Best move: Rxd8#