Last week in the search for heroic chess failures, I wrote about the difficulty spotting 'backwards moves', and mentioned Bronstein enthusing about a position where the White queen returned to d1 to deliver the knockout blow.
Malcolm Pein picks up on the same subject today in The Daily Telegraph: when to beat a retreat. This time it's the Black queen returning to d8, and Magnus Carlsen failing to find the stunning finish in his rapid game against Leko from the Melody Amber tournament.
