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ECO B01BlackA line in the Scandinavian Defense

Learn the 3...Qd6: 4.d4 g6 Fianchetto System line in the Scandinavian Defense

A modern, flexible King's-Indian-flavored treatment of the Qd6 Scandinavian: Black fianchettoes the dark bishop, castles quickly, and aims for ...c6, ...Bg4 with harmonious piece play and king safety.

The moves you’ll play

  1. 1.e4d5
  2. 2.exd5Qxd5
  3. 3.Nc3Qd6
  4. 4.d4Nf6
  5. 5.Nf3g6
  6. 6.Be2Bg7
  7. 7.O-OO-O

The line continues — master it move by move in the app.

Your coach, move by move

  1. 1... d5We open with the central challenge that characterizes the Scandinavian.
  2. 2... Qxd5We recapture with the queen, accepting the tempo cost for swift piece development.
  3. 3... Qd6We place the queen on the flexible d6-square, ideal for the fianchetto plan.
  4. +4 more coached moves waiting in the app

Key ideas behind this line

  • Strike at the center at once with 1...d5; after 2.exd5 recapture with the queen (2...Qxd5) or the knight (2...Nf6) and develop quickly.
  • After 3.Nc3 retreat the queen to a safe, useful square (Qa5, Qd6, or Qd8), accepting a small loss of time for a rock-solid structure.
  • Develop the light-squared bishop to f5 or g4 BEFORE playing ...e6, so it stays active instead of being buried behind the pawn chain.

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More lines in this opening

Main Line: 3...Qa5 Classical (Mieses-Kotroc), 6...Bf5

The flagship Scandinavian: recapture immediately, retreat the queen to a5 where it eyes the c3-knight, and build a solid, harmonious setup with ...c6, ...Bf5, ...e6 resembling a good Caro-Kann. Black is fully equal with an easy, principled position.

3...Qa5 Classical: 6.Bc4 Bg4 Pin Line

Instead of ...Bf5 Black pins the f3-knight with ...Bg4; after h3 we trade on f3 to saddle White with doubled or compromised structure and follow with the solid ...e6, ...Nbd7, ...Bd6 setup.

3...Qa5 Classical: 5.Bc4 (early bishop) Bf5

When White develops the bishop to c4 before the knight, Black uses the moment to get the light bishop out to f5 freely and reaches the same harmonious Bb4/c6/e6 structure with comfortable equality.

3...Qa5: Bc4 with 6...Bg4 7.Be2 Sideline

A sharper, more aggressive treatment: Black pins the knight, develops ...Nc6 hitting d4, and castles queenside to throw pawns at White's king. Active piece play and long-castle pressure give Black full counterplay.

Scandinavian: 3...Qd6 Gubinsky-Melts Main Line

The modern Qd6 system: the queen sits flexibly on d6 supporting an eventual ...e5, while ...a6 prevents Nb5 ideas and prepares ...b5 expansion. Black gets a solid, resilient structure with clear plans.

3...Qd6: 4.d4 Nf6 5.Nf3 c6 Solid Setup

A super-solid Qd6 line with the Caro-Kann pawn skeleton: ...c6 and ...e6 form a wall, ...Bf5 develops the bishop actively first, and Black castles into a position with no weaknesses.

Scandinavian: 3...Qd8 (Banker's) Variation

The ultra-solid Qd8 retreat: the queen returns home losing no further tempo to attack, and Black sets up a clean ...Bg4, ...e6, ...Be7 structure aiming for ...c6 and a safe, passive-but-unbreakable position.

Modern Scandinavian: 2...Nf6 3.d4 Nxd5 Main Line

The Modern/Marshall Scandinavian: instead of recapturing with the queen, Black develops the knight to f6, regains the pawn on d5, and fianchettoes for active piece play with a sound, flexible structure.

2...Nf6 3.d4 Bg4 (Portuguese Gambit Setup, declined)

The Portuguese-style ...Bg4: Black quickly trades the light-squared bishop to remove a defender, regains the d5-pawn with the queen, and castles long for fast attacking play. A practical, aggressive beginner-friendly weapon.

3...Qa5 vs 4.Nf3 (knight before pawn)

When White plays Nf3 before d4, Black transposes seamlessly into the main Classical setup: ...Nf6, ...c6, ...Bf5, ...e6 producing the same comfortable, well-coordinated structure.

3...Qa5 4.d4 Nf6 5.Bc4 c6 6.Bd2 Bf5 (Bd2 system)

Against the Bc4/Bd2 plan Black follows the standard recipe of ...c6, ...Bf5, ...e6 and ...Bb4, reaching the typical Classical position where Black is solid and active on both wings.

3...Qd6 4.d4 Nf6 5.Nf3 a6 6.Ne5 (aggressive Ne5)

When White lunges with Ne5, Black calmly challenges it with ...Nbd7 and uses the queen's flexibility on the c-file to force favorable trades, neutralizing White's activity and heading for a balanced position.

3...Qa5 4.b4 (Tibensky/anti-Qa5) Gambit

If White tries the cheeky b4 to deflect the queen, Black snatches the pawn, retreats safely to d6 after Rb1, and consolidates the extra pawn with normal development. White's compensation is insufficient against accurate play.

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