There are several Circular chess variants.
This version is known as Modern Circular Chess.
Each player commands a classical chess 16 pieces set:
- 1 king
- 1 queen
- 2 rooks
- 2 bishops
- 2 knights
- 8 pawns
The moves are identical to orthodox chess moves adapted to circular topology.
Dispite this ring topology, Queens and rooks are not allowed to move to the position they are leaving.
There is no castling.
Pawns have double step start possibility. There is no "En passant" capture. Promotion is on the opponent start line (6 cells ahead from pawn start position)
Please see the move diagrams below.
For more details and references, please access the Wikimedia Circular Chess page.