Chess tactic

Endgame Puzzle (535)

After the setup move Ke4, it is White to move. Find the forcing continuation before checking the solution.

Position after Ke4. White to move.

Puzzle ID

0Tk80

Rating

535

Side to move

White

Themes

Endgame, Mate, Mate in 1

Material

Material is level

FEN

8/8/1pp5/6Rp/4kP1P/2Br2P1/PP4K1/3r4 w - - 13 40

What to look for

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

40. Re5#

The full forcing line from the source position is:

39... Ke4 40. Re5#