Chess puzzle (Checkmate)
Opening: Czech_Defense, Czech_Defense_Other_variations
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Bg5 Nbd7 5. Bc4 Qa5 6. Ne2 Qxg5 7. Ng3 Qa5 8.
O-O b5 9. Bb3 g6 10. Re1 Bg7 11. e5 dxe5 12. dxe5 Ng8 13. e6 fxe6 14. Rxe6 Ngf6
15. Qe2 Qd8 16. Re1 Bf8 17. Rxc6 Bb7 18. Nxb5 Bxc6 *
Position (FEN): r2qkb1r/p2np2p/2b2np1/1N6/8/1B4N1/PPP1QPPP/4R1K1 w kq - 0 19
White to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1228
Best move: Nd6#