Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. c3 Nc6 5. Nf3 Bf5 6. Nh4 Bg6 7. Nxg6 hxg6 8.
Bd3 e6 9. Nd2 Bd6 10. Qf3 Bxf4 11. Qxf4 Qb6 12. Rb1 cxd4 13. exd4 O-O-O 14. O-O
Qc7 15. Qxc7+ Kxc7 16. b4 Rh7 17. f4 Rdh8 18. h3 Ne7 19. Nf3 Ne4 20. Bxe4 dxe4
21. Ng5 f5 22. Nxh7 Rxh7 23. c4 g5 24. fxg5 Rh5 25. Rfd1 Rxg5 26. Kf2 b5 27.
Rbc1 bxc4 28. Rxc4+ Kd6 29. Rdc1 f4 30. Rc5 Rg3 31. R1c3 e3+ 32. Kf1 Nd5 33.
Rb3 g6 34. a4 g5 35. b5 e2+ 36. Kxe2 Rxb3 37. Rc6+ Ke7 38. Ra6 Nc3+ 39. Kd2
Ne4+ 40. Kc2 Rg3 41. Rxa7+ Kd6 42. b6 Rxg2+ 43. Kd3 Rg3+ 44. Kxe4 *
Position (FEN): 8/R7/1P1kp3/6p1/P2PKp2/6rP/8/8 b - - 0 44
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 868
Best move: Re3#