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RulesLast Updated: 2026-07-18
Underpromotion
"Promoting a pawn to a rook, bishop, or knight instead of the usual queen."
In-Depth Explanation
Underpromotion is correct when a queen would cause stalemate or when a knight's unique attack is needed for check, fork, or mate. Rook and bishop promotions are rarer but can avoid stalemate. Promotion is not limited to pieces previously captured, so multiple queens or knights are legal.
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Frequently Asked Questions
What does underpromotion mean in chess?
Promoting a pawn to a rook, bishop, or knight instead of the usual queen.
How can I practice underpromotion?
Study model positions, explain the idea in your own words, and test the key decisions on the interactive board.
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