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The Hardest chess problem in the world?
http://hebdenbridgechessclub.blogspot.com/2011/02/hardest-chess-problem-in-world.html
129 comments
18/9/2015
Reddit
Fun article: "The Hardest chess problem in the world?"
http://hebdenbridgechessclub.blogspot.com/2011/02/hardest-chess-problem-in-world.html
39 comments
18/9/2015
chess