V. R. Parton - Tweedle Chess

Tweedle Chess

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Tweedle Chess board and starting position

Also known as Twin Orthodox Chess, each player has two kings and two queens on a 10×10 board. A player wins by checkmating either one of the opposing kings.

Game rules

The normal chess rules apply, except that kings and rooks can only castle "short" (i.e. with kings shifting two squares toward the nearest corner), and pawns can move one or two steps at any stage.

Comments

"While his pair of Queens will provide the player's main hopes for victory, his twin monarchs King Tweedledee and King Tweedledum jointly provide his sequence of headaches!" (Parton 1961:14) Parton makes note that the only way a player can escape mate from a fork on his two kings is by capturing the checking piece.

Boyer remarked that the variant yields "magnificent games" (Nouveaux Jeux d'Echecs Non-orthodoxes, Paris 1954) because there are two directions of attack and two points to defend.

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