e1, e8: King
Click on a piece below to see its moves
Sliding capture or non-capture,
|Unblockable leap (capture or non-capture)|
|Piece||ID||value||Moves (Betza notation)||Remarks|
|King||K||-||oK||Can castle with Rook, moving 2 steps towards it|
|Queen||Q||11||oRoB or oQ|
|Pawn||P||1||mfWcfoF||Promotes to Q, R, B, or N on reaching last rank|
A King that has not moved before can move two squares in the direction of a Rook that has not moved before, in which case that Rook is moved to the square the King skipped over. This is only allowed if all squares between King and Rook are empty, when the King is not in check on the square it came from, and would not be in check on any of the squares it skipped over.
Cylinder Chess must be played with legality testing off, as XBoard does not understand the wrapping of the board.
The board wraps around as a cylinder.
It is not possible to force checkmate on a bare King with just a single Rook,Bishop or Knight (in addition to your own King). Two Knights and Bishops in any combination cannot do that either. (Because the board has no corners, forcing checkmate has become much more difficult.)
Bishops are confined to squares of a single color. Having Bishops on both colors compensates this weakness, and is worth an extra 0.5 on top of their added value.
The Rook and Knight hardly benefit from the cylinder board. The Bishop, whose moves normally often end on the left or right board edge, does benefit some, and a Queen gets very dangerous.