Chess puzzle (Checkmate)
Moves: 1. d4 c5 2. dxc5 e5 3. Nf3 Nc6 4. Be3 Nf6 5. Nc3 Ng4 6. Qd2 Nxe3 7. Qxe3 Qa5 8.
Nxe5 Be7 9. O-O-O Qxc5 10. Nxc6 dxc6 11. Qg3 Bf6 12. Ne4 Bxb2+ 13. Kxb2 Qb4+
14. Kc1 Qxe4 15. Qxg7 Rf8 16. Rd3 Qf4+ 17. Re3+ Be6 18. Qb2 O-O-O 19. g3 Qxf2
20. Rf3 *
Position (FEN): 2kr1r2/pp3p1p/2p1b3/8/8/5RP1/PQP1Pq1P/2K2B1R b - - 1 20
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 965
Best move: Qe1#