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).
ECHESSPEDIA
Quotes of the Day
After the 2nd game I could have returned to Moscow. There was only one way I could have won this match.
Boris Spassky (1974)
After an upsetting defeat the best psychology for the next game is a placid draw
Dr. Vidmar
Carlsen simply plays chess well. It seems to me that in such cases people are inclined to look for some supernatural explanation, although the simplest explanation is also the most appropriate: the guy simply plays chess well.
Alexander Grischuk 2014
Kramnik was the luckiest man in the history of chess. He never won a single cycle, he got all the matches that he played for political reasons.
Veselin Topalov 2014
When I saw MVL’s position, it is like a football match where you’re 3:0 down, with two minutes to go and you’re down to 10 men!
Lev Aronian 2016