Invented by: Prof. Alfred Schönfelder, 1974
Difference to standard chess: Played on a 10x10 board with 25 conventional pieces for each player, and individual opening setup.
Each player has 25 pieces; 1 King, 2 Queens, 3 Rooks, 4 Bishops, 5 Knights, and 10 Pawns.
The board is blank when the game begins. Both players start placing their pieces on empty squares alternately and in any order they choose, following these guidelines:
Setting pieces is only permitted in one's own half of the board, which corresponds to rows 1 through 5 for white and 6 through 10 for black.
Pawns of the same colour must be set up on different columns. Double Pawns, treble Pawns (and so on) is not permitted. Although it is not against the rules to place a white Pawn in the first row or a black Pawn in the last row, doing so is not advised.
Each player must place his four bishops on two squares that are white and two that are black.
Black king cannot be "in check" at the end of setup.
Moving the pieces is not permitted while the game is being setup. The standard chess rules apply with the following modifications once all pieces have been placed:
Pawns are always permitted to advance one or two spaces, not just on the opening move.
En passant capture is possible in every applicable situation according to the well known rule.
Castling is not allowed.