Touch-move rule the player touches his rook at the same time as touching the king, he must castle with that rook if it is legal to do so. If the player completes a two-square king move without touching a rook, the player must move the correct rook accordingly if castling on that side is legal. Otherwise, the move must be withdrawn and another king move made. When a pawn is moved to its eighth , once the player takes his hand off the pawn, a different move of the pawn can no longer be substituted. However, the move is not complete until
Rhombic Chess Parachess using the same board geometry but introducing additional ways to move: These ways to move are highlighted on the board by same-colored cells. Bibliography Rhombic Chess Rhombic Chess is a chess variant for two players created by Tony Paletta in 1980. The gameboard has an overall hexagonal shape and comprises 72 rhombi in three alternating colors. Each player commands a full set of standard chess pieces. The game was first published in "Chess Spectrum Newsletter" 2 by the inventor. It was included in "World Game Review" No. 10 edited by Michael Keller. The diagram shows the starting setup. As