Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. Nf3 d5 3. Bf4 Nf6 4. e3 Bb4+ 5. c3 Ba5 6. Qa4+ Nc6 7. Bb5 Bb6 8.
Ne5 Bd7 9. Nxc6 bxc6 10. Bxc6 O-O 11. Bxd7 Nxd7 12. Nd2 c5 13. Nf3 Bc7 14. Bxc7
Qxc7 15. O-O Rab8 16. Qc2 Rb6 17. Qd2 c4 18. Rfb1 Rfb8 19. a4 Nf6 20. a5 Ra6
21. Qc2 Rxa5 22. Rxa5 Qxa5 23. b3 Qb6 24. Nd2 cxb3 25. Rxb3 Qc7 26. c4 Rxb3 27.
c5 Qa5 28. Nxb3 *
Position (FEN): 6k1/p4ppp/4pn2/q1Pp4/3P4/1N2P3/2Q2PPP/6K1 b - - 0 28
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 967
Best move: Qe1#