Rules of Austrian pokerchess

Rules:

One pawn of each color is marked at the bottom, representing the queen. The pawns can be positioned at will. While the player himself knows which of the pawns is his queen the opponent can only guess from the player’s reaction. The game is played without the queen figure and the first time a queen-type movement is used by the marked pawn, the pawn has to be revealed and replaced by the queen figure.

I would recommend sticking round colored stickers at the bottom of all pawns, but one with a different color. This way you would not have a height difference, nor would you necessarily have the same queen-pawn all the time. If all pawns really look the same, a permanent marker does the same job.

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The game was first described by Sina Falahati and is played in Vienna.