What of variations which involve some other influence on the game such as those using dice or cards (especially Knightmare Chess)?
For the most part such accessories should make no real difference to the way City Chess is played. For though they may affect the outcome and play of the game, usually by adding an element of chance to the strategy and tactics of players, they do not affect the actual progression of the game. Since City Chess is basically a “shell” which reveals captures and/or moves, it is not really affected by these new elements, adversely or otherwise. The only amendment to that possibly coming with Steve Jackson Games’ Knightmare Chess, or something similar, in which a number of the cards not only affect the rules of play and the pieces, but sometimes impact directly on the board. Some players may then choose to represent the effects of these cards on the Board in one way or another, especially some of the more powerful or destructive cards.