Dronninggambit

An opening where White attacks Black's central pawn with the pawn that starts in front of the bishop beside the queen.

A Queen's Gambit variation in which Black captures White's offered c4-pawn with the pawn from d5.

A Queen's Gambit Accepted line where White advances the e-pawn to e4 and immediately builds a broad center.

A main Queen's Gambit Accepted line where both sides develop, White recovers c4, and Black attacks d4 with c5.

A Queen's Gambit response in which Black does not capture on c4 and supports the central d5-pawn with ...e6.

A variation where White trades the c-pawn for Black's central d-pawn, creating the asymmetric Carlsbad pawn structure.

A classical Queen's Gambit Declined line in which Black develops with ...Be7, ...O-O, and ...Nbd7 before resolving the center.

A Queen's Gambit Declined line in which Black plays ...h6 and ...Ne4 to exchange pieces and free the position.

A Queen's Gambit Declined line in which Black plays ...h6 and ...b6 to activate the c8-bishop through b7.

A Queen's Gambit Declined line in which Black plays ...Qa5 to create tactical pressure along the a5-e1 diagonal.

A Queen's Gambit Declined system defined by White's early development of the c1-bishop to f4.

A variation where Black advances the a7-pawn to a6 early, preparing a capture on c4 that the b-pawn can support.

A Queen's Gambit Declined defense combining a solid center with a bishop pin on White's knight to increase central pressure.

A Three Knights line where Black captures on c4 and challenges White to build or recover the center.

An active Queen's Gambit defense where Black challenges the center early and often accepts a central pawn without support from neighboring pawns.

A Queen's Gambit defense where Black develops the king-side knight before challenging the center with the c-pawn, often enabling a knight recapture.

A defense to the Queen's Gambit in which Black protects the d5-pawn with the pawn move ...c6.

A classical Slav line where Black captures on c4 and develops the c8-bishop to f5 before advancing the e7-pawn.

A Slav variation where White trades the c-pawn for Black's d-pawn and Black recaptures with the c-pawn.

A flexible Slav variation in which Black plays ...a6 to prepare ...b5 while keeping several pawn structures available.

A defense to the Queen's Gambit in which Black supports d5 with pawns on both c6 and e6.

A Semi-Slav line in which Black captures on c4 after Bd3 and gains queenside space with ...b5 while developing.

A very sharp Semi-Slav line in which Black captures on c4 and White builds a large center with e4.

A Semi-Slav line in which White answers ...h6 by exchanging the g5-bishop for the f6-knight and Black's queen recaptures.

A sharp Semi-Slav line in which White retreats the bishop to h4 and offers a pawn for a strong center and attacking activity.

A Semi-Slav line where White’s queen goes to c2 to support e4 and delay the decision about the f1-bishop.

A Semi-Slav line where Black’s f8-bishop goes to d6 to support a central advance and help secure the king quickly.

A line from Black’s c6, d5, and e6 pawn setup where Black captures on c4 and seeks two neighboring advancing pawns.

An aggressive line where White offers the e4-pawn to open the center against Black’s pawns on c6, d5, and e6.

A Queen's Gambit defense where Black develops the queen-side knight early and pressures the center with pieces instead of reinforcing it with pawns.

A defense in which Black develops the c8-bishop to f5 before supporting the central d5-pawn with the e-pawn.

An aggressive Queen's Gambit reply where Black offers a central pawn and seeks activity through a deeply advanced queen pawn.