Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Qc3 Nd5 7. Qd2 Nb6 8. b3
Bg7 9. Bb2 O-O 10. Na3 d6 11. O-O-O Nxe5 12. Nxe5 Bf5 13. g4 Bxc2 14. Nxc2 dxe5
15. Bg2 Qc7 16. Kb1 Rac8 17. Rhe1 a5 18. f4 a4 19. fxe5 axb3 20. axb3 e6 21.
Re2 Rfd8 22. Qe1 Nd5 23. Bxd5 exd5 24. Qf2 Re8 25. Qd4 Rxe5 26. Rxe5 Bxe5 27.
Qxe5 Qxc2+ 28. Ka2 *
Position (FEN): 2r3k1/1p3p1p/6p1/3pQ3/6P1/1P6/KBq4P/3R4 b - - 1 28
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1123
Best move: Ra8#