举棋不定

Origin and story

The Zuo Tradition, Duke Xiang's twenty-fifth year, records criticism of Ning Xi's willingness to restore the exiled Duke Xian of Wey. Taishu Wenzi warns that such a consequential political choice requires thinking through its outcome. He compares wavering over a ruler with a board-game player lifting a piece but failing to decide where it belongs.

The game is a comparison within political advice, not an account of Ning Xi losing an actual match. If indecision can defeat a player, the speaker asks, how much more dangerous is uncertainty over installing a ruler? The idiom now describes being unable to settle on a course of action.