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
If the FIDe elections were not decided by the votes of the delegates but by the world’s chess society as a whole, there would not even be a competition.
Anatoly Karpov NIC 2010
I enjoy it when I see my opponent really suffering when he knows that I’ve outsmarted him
Magnus Carlsen 2012
” Chess is most certainly not my life.”
Tony Miles
I think I would beat Tal pretty easily. Fischer would be more difficult, but I think I could beat him too.
Magnus Carlsen
If the 12th game (from the match Carlsen-Karjakin)… were a restaurant dish, I would send it back to the chef.
Nigel Short 2016