Chess tactic

Endgame Puzzle (2246)

After the setup move Ka3, it is Black to move. Find the forcing continuation before checking the solution.

Position after Ka3. Black to move.

Puzzle ID

00dt1

Rating

2246

Side to move

Black

Themes

Endgame, Exposed King, Fork

Material

White is ahead by 3 points

FEN

Q7/8/3B4/2p5/1rkn4/K7/8/8 b - - 2 54

What to look for

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

54... Nb5+ 55. Ka2 55... Nc3+ 56. Ka1 56... Rb1#

The full forcing line from the source position is:

54. Ka3 54... Nb5+ 55. Ka2 55... Nc3+ 56. Ka1 56... Rb1#