♞CHESS:
AN AI LESSON

QUEEN’S GAMBIT FOR WHITE · LESSON 6 OF 6

Expect the surprise.
Keep your principles.

Not every opponent chooses the Accepted, Declined or Slav. Learn the purpose of Black’s early sidelines, then use a simple routine to bring the entire course into your games.

Final lesson: sidelines and repertoire map

← Course contents

The Albin Countergambit: 2…e5

Black immediately offers a pawn. After 3.dxe5 d4, the advanced d4-pawn gains space and interferes with White’s development. Accepting is possible, but keeping the extra pawn is less important than controlling d4 and getting the pieces out.

Treat the pawn as a dangerous advanced unit. Develop accurately, challenge it with Nf3 and e3 when appropriate, and avoid greedy moves that leave the king in the centre. Black wants activity; calm development reduces the compensation.

Example board: the Albin’s advanced pawn

White has won a pawn, but Black’s pawn on d4 restricts development and must be handled.

The Chigorin Defence: 2…Nc6

Black develops the b8-knight in front of the c-pawn and increases pressure on d4. This is active and piece-based rather than a classical pawn defence of d5. White can develop Nf3, keep the centre supported and be ready for …e5.

The knight on c6 may become exposed to cxd5 followed by pressure, but do not chase it without completing development. Your first question is whether the d4-pawn is secure against Black’s central attack.

Example board: Black uses a piece to defend

Compare this with …c6. The knight is active, but Black’s c-pawn is blocked.

The Baltic and Marshall setups

After 2…Bf5, the Baltic Defence develops the bishop before supporting d5. White can challenge the centre with cxd5 or continue development while noticing that Black’s b7-pawn may become sensitive after Qb3 ideas. Do not hunt b7 if the queen will become a target.

After 2…Nf6, often called the Marshall Defence, Black develops but leaves d5 under direct pressure. cxd5 can make it harder for Black to recapture comfortably. The principle is simple: when Black does not support d5 with a pawn, check whether the centre can be clarified favourably.

Example board: compare two early sidelines

In both positions, Black develops a piece before supporting d5. Identify what changed before choosing your reply.

When the game is no longer a Queen’s Gambit

If Black answers 1.d4 with …Nf6, …f5 or …c5 instead of …d5, you may enter the King’s Indian, Grünfeld, Dutch or Benoni. Do not force Queen’s Gambit moves into a different structure.

You can still use the broad principles: occupy or influence the centre, develop, castle and find the correct pawn break. But the detailed plan comes from the actual structure. Naming the opening is less important than recognising what changed.

Your complete practical repertoire map

  1. 2…dxc4: Nf3, e3, Bxc4, O-O; challenge …b5 with a4.
  2. 2…e6: develop with pressure; choose tension, cxd5 or e4; watch …c5 and …e5.
  3. 2…c6: expect …Bf5 or …dxc4; use a4 against a queenside pawn chain.
  4. Carlsbad structure: prepare Rb1 and b4–b5, or choose a supported central expansion.
  5. Early counterattack: solve Black’s immediate idea, then return to development and king safety.

After every game, find the first moment when you stopped understanding the position. Review that moment rather than memorising the whole game.

Final practice and memory card

  • Read Black’s structure before choosing your plan.
  • Against the Albin, respect the advanced d4-pawn.
  • Against the Chigorin, protect the centre and expect active piece play.
  • Against early …Bf5 or …Nf6, check whether d5 lacks support.
  • If Black avoids …d5, identify the new opening and structure.
  • Development, king safety and a purposeful pawn break remain your anchors.

Final questions: What is Black’s compensation in the Albin? What drawback comes with …Nc6 in the Chigorin? What should you do when Black avoids 1…d5?

Reveal answers

The Albin gives Black activity and an advanced d4-pawn. …Nc6 blocks Black’s c-pawn while adding piece pressure to d4. If Black avoids 1…d5, recognise the new pawn structure and use plans suited to that opening.

Next-game challenge: after Black’s second move, say out loud: capture, support or counterattack? Then name the structure and your development job before moving.