Mate Puzzle (1239)

After the setup move Bxg7, it is Black to move. Find the forcing continuation before checking the solution.

Position after Bxg7. Black to move.

Puzzle ID

0GrCZ

Rating

1239

Side to move

Black

Themes

Mate, Mate in 2, Middlegame

Material

White is ahead by 2 points

FEN

r5k1/6Bp/p1p3p1/2Nb2q1/2pQ4/5r2/PP4PP/R3R1K1 b - - 0 23

What to look for

Calculate a forcing checkmate sequence.

23... Rf1+ 24. Rxf1 24... Qxg2#

The full forcing line from the source position is:

23. Bxg7 23... Rf1+ 24. Rxf1 24... Qxg2#