A combination of vertical and horizontal cylinder boards, used for Fairy Problem, so that not only do the a- and h-files adjoin, but also the 1st and 8th rank, and the board has no edges at all. It is sometime diagrammed without edges.
ECHESSPEDIA
Quotes of the Day
Tal develops all his pieces in the centre and then sacrifices them somewhere.
David Bronstein
When Korchnoi was living in the USSR I called him ‘hero of socialist labour’; when he moved to the West I renamed him ‘hero of capitalist labour’!
Boris Spassky
When you see a good move, look for a better one
Emanuel Lasker
I think that the World Champion should try to defend the quality of play more than anyone else!
Boris Spassky
In addition to talent, Magnus has the health of a racehorse and a powerful nervous system.
Vladimir Kramnik 2015