Mate Puzzle (1149)

After the setup move Nxc7, it is Black to move. Find the forcing continuation before checking the solution.

Position after Nxc7. Black to move.

Puzzle ID

0g0ok

Rating

1149

Side to move

Black

Themes

Mate, Mate in 1, Middlegame

Material

White is ahead by 2 points

FEN

4r1k1/ppN3p1/5p1p/2P5/2P2Kb1/6P1/PB5n/R3N3 b - - 0 25

What to look for

Calculate a forcing checkmate sequence.

25... g5#

The full forcing line from the source position is:

25. Nxc7 25... g5#