- Can I trust you?
- Can I?

This variant was invented in January 2000. The main idea is to insert some temporary imperfect information into chess, and also give to the players a little of paranoia about their own pieces

Traitor Chess

1. The FIDE rules apply, except in the following:
2. A traitor is a non royal piece of the enemy.
3. The pieces have the following values: Queen/9, Rook/5, Bishop/3, Knight/3, Pawn/1.
4. Before the game starts, each player have 9 points to choose one or more traitors and writes them down on a paper (see note).
5. Before his turn, each player can announce one of his remaining traitors, and thus controlling it (i.e., the other player cannot use the announced traitor anymore).
6. A traitor does not change its color, so it cannot be used to capture (or be captured by) enemy pieces. It may be used has an obstacle since the enemy cannot capture it. However, a traitor still gives check to the player's King.

notation: I use (T-piece) to represent traitor announcement.

variant: The traitors change color when they are announced.

note: For net play, each player can send an encrypted file (e.g., zip or word file) with the traitor information. At the end of the game each player sends the key to the encrypted file. In this way, it is possible to check the information.

Sample Game

[White Traitors: Rh1,Bc1,g2]
[Black Traitors: Qd8]

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