Quiescence Search
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.
Related Technical Terms
FEN (Forsyth-Edwards Notation)
A standard notation for describing a particular board position of a chess game.
Blunder
A very bad move that loses significant material or the game, usually marked as ?? in chess notation.
Algebraic Notation
The standard system for recording chess moves using square coordinates (e.g. e4, Nf3, O-O).
Recommended Tools
Frequently Asked Questions
An engine extension that continues forcing moves until a tactically unstable position becomes quiet.
Use a real game in the Plychess analysis tools and identify where quiescence search affected the position or result.
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