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
Kasparov is great as a chess player, but all his attempts to prove himself as an organizer – let’s say, is beyond the champion’s level.
Boris Gelfand 2016
When I play well, I don’t win!
Maxime Vachier Lagrave 2017
We will note the openings used by the participants of a nine-round match. The age of openings is considerably higher than the age of both rivals. Some opening positions could be analyzed by Steinitz when he was preparing to his match with Zukertort.
Mikhail Tal 1966 (Petrosian-Spassky match)
It is not possible to become a great player without having learned how to analyse deeply and accurately.
Mark Dvoretsky
Do you realize, Fischer almost never has any bad pieces? He exchanges them, and the bad pieces remain with his opponents.
Yury Balashov