Chess tactic

Crushing Puzzle (1836)

After the setup move Ka8, it is White to move. Find the forcing continuation before checking the solution.

Position after Ka8. White to move.

Puzzle ID

0TTz3

Rating

1836

Side to move

White

Themes

Crushing, Discovered Attack, Endgame

Material

Black is ahead by 5 points

FEN

k3b3/1r6/p2Qp2p/B3Ppp1/8/2P2P2/q5PP/5K2 w - - 4 42

What to look for

Find a move that decisively changes the evaluation, usually by force.

42. Qxa6+ 42... Kb8 43. Bc7+ 43... Rxc7 44. Qxa2

The full forcing line from the source position is:

41... Ka8 42. Qxa6+ 42... Kb8 43. Bc7+ 43... Rxc7 44. Qxa2