Glossary of Chess - Q

Q
Symbol used for the queen when recording chess moves in English.
QGA
The Queen's Gambit Accepted chess opening.
QGD
The Queen's Gambit Declined chess opening.
QID
The Queen's Indian Defence chess opening.
Quad
A round-robin style tournament between four players, where each participant plays every other participant once.
Queen
Also used as a verb for the act of promoting to a Queen, e.g. "... to queen the pawn".
Queen Bishop
The bishop that was on the queenside at the start of the game. The terms Queen Knight and Queen Rook are also used. Sometimes abbreviated QB, QN, and QR respectively.
Queen pawn
A pawn on the queen's file, i.e. the d-file. Sometimes abbreviated QP. Also Queen Rook Pawn (QRP), Queen Knight Pawn (QNP), and Queen Bishop Pawn (QBP) for pawns on the a, b, and c-files respectively.
Queening
Promotion to a queen. Also called #Promotion. Rarely used to indicate promotion to a knight, rook, or bishop as well (underpromotion).
Queenside
The side of the board where the queens are at the start of the game (the a through d files), as opposed to the kingside.
Quickplay finish
Same as "Sudden Death".
Quiet move
A move which does not attack or capture an enemy piece.

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