Chess tactic

Endgame Puzzle (1419)

After the setup move Kh1, it is Black to move. Find the forcing continuation before checking the solution.

Position after Kh1. Black to move.

Puzzle ID

0MoBR

Rating

1419

Side to move

Black

Themes

Endgame, Mate, Mate in 3

Material

White is ahead by 1 point

FEN

R7/P7/8/5pp1/5k2/r6P/6P1/7K b - - 1 45

What to look for

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

45... Kg3 46. Rb8 46... Ra1+ 47. Rb1 47... Rxb1#

The full forcing line from the source position is:

45. Kh1 45... Kg3 46. Rb8 46... Ra1+ 47. Rb1 47... Rxb1#