Mate Puzzle (1373)

After the setup move Kf7, it is White to move. Find the forcing continuation before checking the solution.

Position after Kf7. White to move.

Puzzle ID

0JmhO

Rating

1373

Side to move

White

Themes

Mate, Mate in 3, Middlegame

Material

Black is ahead by 2 points

FEN

r2qr3/1p1bbk2/1n2pppB/p2n4/P2PN1Q1/8/1P3PPP/RB3RK1 w - - 2 21

What to look for

Calculate a forcing checkmate sequence.

21. Nd6+ 21... Bxd6 22. Qxg6+ 22... Ke7 23. Qg7#

The full forcing line from the source position is:

20... Kf7 21. Nd6+ 21... Bxd6 22. Qxg6+ 22... Ke7 23. Qg7#