It's one of the most common chess openings and involves white sacrificing (that's the "gambit" part) a queen-side pawn (the "queen" part). In Algebraic notation, the move is: White moves its pawn ...

The Catalan Opening in chess. Gukesh used a variation of the Catalan against Ding Liren in Game 9 of the World Chess Championship. (Courtesy: Lichess) While playing the Catalan, White keeps a strong ...