special endgame rules in Cambodian Chess

Cambodian Chess

Special Endgame Rules

Nomenclature :

Fish = pawn  boat = rook  post = bishop  horse = knight

In the event that one player has only a King remaining on the board, special rules come into effect giving the opposing player an allotted number of moves with which to capture that King. Should the player with the extra pieces fail to capture the opponent's King within the allotted movements, then the game is considered a draw.

Remaining Unpromoted Fish

The following rule applies in cases where the player with the extra pieces has Fish remaining on the board that have not been promoted, regardless of what other pieces that player may still possess:

• The players add the number of pieces left on the board and subtract it from 64, and these are the number of moves the player with the extra pieces has to capture the opposing King. For example, if there are still 5 pieces total left on the board (including the Kings), then the player with the extra pieces must capture the opposing King in  59 moves or the game is considered a draw. 

No Remaining Unpromoted Fish
In cases where the player with the extra pieces has no unpromoted Fish remaining on the board, the number of moves in which that player is required to capture the opposing King is determined as follows:

• If the player has 2 Boats,subtract the number of pieces left on the board from 8.
• If the player has 1 Boat, subtract the number of pieces left on the board from 16.
• If the player has 2 Posts, subtract the number of pieces left on the board from 22.
• If the player has 2 Horses, subtract the number of pieces left on the board from 32.
• If the player has 1 Post, subtract the number of pieces left on the board from 44.
• If the player has 1 Horse, subtract the number of pieces left on the board from 64.
• If the player has any combination of Queen and promoted Fish, subtract the number of pieces left on the board from 64.

The capture of a piece by a fleeing King may trigger a new count.  For example, if the player with the extra pieces has 2 Posts and 2 Horses remaining, the number of moves allotted to capture the opposing King is 16 (22 subtracted by the 6 pieces left on the board).  However, if one of the Posts is later captured by the opposing King, then the count begins anew and the number of moves allotted becomes 27 (32 subtracted by the 5 pieces remaining on the board).

As in western chess, the rule of tie by stalemate also applies (i.e., when a King is put into a position in which the player cannot move without putting that King in line of a direct attack).

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