Daily chess puzzle

Today’s puzzle is from the penultimate round of the British Chess Championships. The blog was prepared live during the round, and as is my custom, is posted in arrears.

White to play

Stephen Gordon v Justin Tan. British Championships, Torquay, 3rd August 2019

Solution

The finale of yesterday’s puzzle. After 1..Kf8 in yesterday’s puzzle, Stephen swapped Queens off on d6, to exploit the weakness of Black’s Pb6.

In the diagram position, 1 Rd5! and if 1…ed, then 2 cb, and a b pawn promotes.