Mate Puzzle (1205)

After the setup move gxf3, it is White to move. Find the forcing continuation before checking the solution.

Position after gxf3. White to move.

Puzzle ID

0Zz5m

Rating

1205

Side to move

White

Themes

Mate, Mate in 2, Middlegame

Material

Black is ahead by 1 point

FEN

r3k2r/pp3p2/2p3p1/4p1q1/2B1Pb2/2PQ1pP1/PP3P2/3R1RK1 w kq - 0 18

What to look for

Calculate a forcing checkmate sequence.

18. Qd7+ 18... Kf8 19. Qxf7#

The full forcing line from the source position is:

17... gxf3 18. Qd7+ 18... Kf8 19. Qxf7#