Chigorin Chess before the fifth move, and to castle that early he must move the f- or h-pawn to develop the g8-bishop and weaken his . Chigorin Chess Chigorin Chess is a chess variant invented by Ralph Betza in 2002. It was named after Mikhail Ivanovich Chigorin. Betza commented that The game follows all the rules and conventions of standard chess, with two differences: Chigorin Chess was meant to emphasize the contrast between the relative values of knights and bishops in standard chess. Betza commented that it was a good introductory variant for chessplayers, like his earlier Almost Chess. Betza considered that
Tutti-Frutti Chess Tutti-Frutti Chess Tutti-Frutti Chess is a chess variant invented by Ralph Betza and Philip Cohen in 1978. It has been played regularly in tournaments and correspondence games. The game is played using a standard chessboard, and follows all the rules and conventions of standard chess, with one difference: the queen's rooks are replaced by empresses (rook plus knight), the queens are replaced by amazons, the king's bishops are replaced by queens and the king's knights are replaced by princesses. All other pieces are unchanged. A king may castle with a rook or empress, and pawns may promote to any piece