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TechnicalLast Updated: 2026-07-18
Quiescence Search
"An engine extension that continues forcing moves until a tactically unstable position becomes quiet."
In-Depth Explanation
Without quiescence search, an engine might stop immediately before a capture and evaluate a misleading snapshot, known as the horizon effect. The engine extends captures, checks, or promotions until the tactical sequence settles, producing a more meaningful static evaluation.
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Frequently Asked Questions
What does quiescence search mean in chess?
An engine extension that continues forcing moves until a tactically unstable position becomes quiet.
How can I practice quiescence search?
Use a real game in the Plychess analysis tools and identify where quiescence search affected the position or result.
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