Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 b5 7. Be3 Bb7 8. Qd2
Nbd7 9. O-O-O Rc8 10. Kb1 e6 11. g4 Nb6 12. h4 Nfd7 13. Bg2 Ne5 14. b3 d5 15.
Bf4 Nec4 16. bxc4 Nxc4 17. Qd3 Qa5 18. Nb3 Qa3 19. exd5 *
Position (FEN): 2r1kb1r/1b3ppp/p3p3/1p1P4/2n2BPP/qNNQ1P2/P1P3B1/1K1R3R b k - 0 19
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 965
Best move: Qb2#