Chess tactic

Endgame Puzzle (1018)

After the setup move g3, it is Black to move. Find the forcing continuation before checking the solution.

Position after g3. Black to move.

Puzzle ID

0VSZe

Rating

1018

Side to move

Black

Themes

Endgame, Mate, Mate in 2

Material

White is ahead by 4 points

FEN

8/p7/1pR2R1p/5p2/1P4kP/P1P3P1/3n1P1K/3r4 b - - 0 33

What to look for

A tactic from a reduced-material position where king activity and promotion threats matter.

33... Nf3+ 34. Kg2 34... Rg1#

The full forcing line from the source position is:

33. g3 33... Nf3+ 34. Kg2 34... Rg1#