show one’s hand

vyložit karty na stůl

That could be remedied, he could acquire a transcript of the proceedings or simply a copy of the pathologist’s findings, but he did not dare, he was not prepared to show his hand to that extent. Instead he tried to guess what might have been said. He put himself into the pathologist’s shoes and stood in the witness box.

But if Gloucester chose to act against Hastings , rather than being stampeded into it by his discovery of a conspiracy, why did he choose to show his hand before his troops reached London and before he had control of the other possible claimants to the throne?

The Minister has told us today that he does not want to let us know what his proposals will be when he goes into negotiations. No poker player will sit with a man at his back or show his hand, but nor will a poker player have a cocky attitude to the game.

(BNC-B)

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