King Support Chess
This variant is intended to be less drawish and have a clearer rule structure.
It introduces the support of pawns by the friendly King, allowing a supported pawn to capture orthogonally forward also. That gives more possibilities to break up interlocked pawn structures and in several situations makes it more difficult to block a passed pawn. Thus it can be expected that several positions that would normally be drawn are now decided.
The en passant capture and the castling are replaced by rules that make the allowed moves not dependent on previous moves but on the current position only.
Rules
Same as orthodox Chess, with the following exceptions:
A pawn can make a double move only if the square to leap over is not attacked by an opponent's pawn. With respect to this rule, a pawn is always attacking the squares diagonally in front of it. This rule makes the en passant capture obsolet.
A pawn that is orthogonally or diagonally adjacent to the King of the same colour may capture to the square orthogonally in front of it. It may not make a capturing double move.
Castling is replaced by a King leap: If a King is on the origin square (white on e1, black on e8), it may move along the 1st resp. 8th row to an empty square, thereby leaping over one and only one piece which must be of the same colour. The King may not make this leap when in check and may not leap over squares attacked by the opponent. But it is not required that the King or the piece leapt over has not moved. That means that a side can make the King leap more than one time in a game.
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By Thomas .
Web page created: 2024-02-26. Web page last updated: 2024-05-10