Chess tactic

Endgame Puzzle (1017)

After the setup move h3, it is Black to move. Find the forcing continuation before checking the solution.

Position after h3. Black to move.

Puzzle ID

0EVvX

Rating

1017

Side to move

Black

Themes

Endgame, Mate, Mate in 2

Material

White is ahead by 4 points

FEN

8/7r/2Q5/k2Pp3/4P3/4q2P/P5P1/6RK b - - 0 43

What to look for

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

43... Rxh3+ 44. gxh3 44... Qxh3#

The full forcing line from the source position is:

43. h3 43... Rxh3+ 44. gxh3 44... Qxh3#