A theme in problems where four black interferences are included by four possible moves of two black pawns. The two pawns, by the very conditions, must stand on their original squares (BCM 55/245).
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Quotes of the Day
In one game it is too difficult to play both for win and draw simultaneously.
Mihail Tal 1969
Not this time, Mr. Carlsen! (after winning the World Blitz Championship 2016)
Sergey Karjakin 2016
I may be an old lion, but I can still bite someone’s hand off if he puts it in my mouth
Wilhelm Steinitz
I enjoy it when I see my opponent really suffering when he knows that I’ve outsmarted him
Magnus Carlsen 2012
Tal develops all his pieces in the centre and then sacrifices them somewhere.
David Bronstein