In chess composition, a pair of interference variations created by Walter Grimshaw (1832-1890) around 1850, in which piece X interferes with piece Y and vice versa.
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Quotes of the Day
The game of chess is turning out to be much richer than we knew-you can’t reduce it to the simple rules
Vishy Anand 2017
When you see a good move, look for a better one
Emanuel Lasker
Fischer’s strength, among other things, was his ability to evolve the most efficient plan for the middlegame right after the opening.
Boris Spassky
Drawing general conclusions about your main weaknesses can provide a great stimulus to further growth.
Alexander Kotov
If the 12th game (from the match Carlsen-Karjakin)… were a restaurant dish, I would send it back to the chef.
Nigel Short 2016