Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nd7 5. h4 e5 6. Be3 Ngf6 7. Qd2 h6 8. f3 Nh5
9. Nge2 Nb6 10. b3 f5 11. O-O-O Qe7 12. d5 Nf6 13. Kb2 fxe4 14. fxe4 Bg4 15.
Re1 h5 16. Nc1 Nfd7 17. Nd3 a5 18. a4 c6 19. Be2 Bxe2 20. Qxe2 Bf6 21. g3 Kd8
22. Ref1 Kc7 23. Rf3 Rhf8 24. Rhf1 Rf7 25. Bh6 cxd5 26. cxd5 Rh7 27. Nb5+ Kb8
28. Be3 Nc8 29. Rc1 b6 30. Nc7 Ra7 31. Ne6 Nc5 32. Ndxc5 bxc5 33. Qb5+ Rb7 34.
Qxa5 Nb6 35. Bxc5 Nxd5 36. exd5 e4+ 37. Rxf6 Qxf6+ 38. Ka3 dxc5 39. Rxc5 *
Position (FEN): 1k6/1r5r/4Nqp1/Q1RP3p/P3p2P/KP4P1/8/8 b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 910
Best move: Qa1#