Mate Puzzle (1626)

After the setup move Ng8, it is White to move. Find the forcing continuation before checking the solution.

Position after Ng8. White to move.

Puzzle ID

0YAUi

Rating

1626

Side to move

White

Themes

Mate, Mate in 2, Middlegame

Material

Black is ahead by 1 point

FEN

r2q2nr/pppb3k/5R2/2bPB2p/4P1p1/8/PPPQ2PP/RN5K w - - 9 18

What to look for

Calculate a forcing checkmate sequence.

18. Rf7+ 18... Kg6 19. Rg7#

The full forcing line from the source position is:

17... Ng8 18. Rf7+ 18... Kg6 19. Rg7#