Labels:dialog box | poster | regular polyhedron | sky OCR: page9 of 50 Rules Since the rules, other than the very presence of the new pieces, deviate little from orthodox Chess it will be sufficient to point out the differences There is no castling rule Pawns promote optionally uo moving to the eighth or ninth rank compulsory uo moving to the tenth. pawn may only promote to piece previously lost by its side. If no pieces are lost, the pawn may not move tothe tenth rank. However pawn attacks King on the tenth rank no piece being lost by its side it nevertheless gives check That an optionis better than an obligation ic beautifully shown in problem 1, by P.H. van den Muijzenberg White mates ir rob em mate That pawns only promote to a piece previously lost, not only satisfies sense of completeness, but also marks the end of topsyturvy Rooks Grand Ches ...
