Tournament Play

What is a sealed move in chess?

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Sealed move is a tournament term: to prevent unfair advantage when an OTB game is adjourned, the player whose turn it is to move is required to write down their next move and put it in a sealed envelope. Upon resumption, the arbiter opens the sealed envelope, makes the move and the game continues. The player may be disqualified if the sealed move is illegal, ambiguous or unclear. This affects how games are organized, scored, paired, or decided.

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