Opening courses
White repertoireImproving to club

The Double-Decker London

An active d4 and Nc3 repertoire built around Bf4, central play and concrete responses to Black’s early challenges.

We develop the queenside knight early and bring the bishop outside the pawn chain, building an active 1.d4 repertoire. We connect this starting formation with concrete replies to central pawn breaks, early bishops, kingside fianchettos and the Dutch Defence. Some branches attack the king; others simplify into balanced positions where structure and piece activity guide the plan. We count material carefully and choose the next step from the exact board.

SystemAttacking
chapters
15
lines
59
moves to know
550

1. Immediate c5: coordinate through the centre

6 lines

We meet Black's early c-pawn challenge by connecting central recaptures with active piece development. The bishop on f4 and knight on c3 remain our starting arrangement, but queen moves, exchanges and exposed kings can change the plan quickly. Some branches reward a direct attack; others lead to a balanced queenless position. We count material carefully and distinguish useful practical activity from a forced result, keeping our own king's safety part of every decision.

  1. Line 11.d4 Nf6 2.Nc3 d5 3.Bf4 c5 4.e3 cxd4 5.exd4 a6 6.Nf3 Bg4 7.h3 Bxf3 8.Qxf3 Nc6 9.O-O-O e6 10.g4 Bb4 11.Ne2 Qa5 12.Kb1 Ne4 13.Nc1 Bd6 14.Nb3 Qc7 15.Be3 O-O 16.Rg1 b5 17.Bd3 f5 18.gxf5 exf5 19.Bh6FreeLearn
  2. Line 2… 6.Nf3 g6 7.Ne5 Nbd7 8.Qf3 Bg7 9.h4 O-O 10.O-O-O Qa5 11.h5 Nxh5 12.Rxh5 gxh5 13.Qxh5 Nf6 14.Qh4 Be6 15.Bd3 Rfc8 16.Nb1 Kf8 17.Bh6 Bxh6+ 18.Qxh6+ Ke8 19.Qg7 Kd8 20.Qf8+ Ne8 21.Nxf7+ Bxf7 22.Qxf7Premium
  3. Line 3… 4.e3 a6 5.dxc5 Qa5 6.Nf3 Ne4 7.Qxd5 Nxc3 8.Qd2 Qxc5 9.Qxc3 Qxc3+ 10.bxc3 Nd7 11.Rb1 g6 12.c4 Bg7 13.Be2 Bc3+ 14.Kd1 O-O 15.Kc1 Nc5 16.Be5 Ne4 17.Rf1 Rd8 18.Bd3 Bxe5 19.Nxe5Premium
  4. Line 4… 6.Nf3 Qxc5 7.Be2 Nc6 8.O-O Bf5 9.Na4 Qa7 10.Rc1 e6 11.c4 dxc4 12.Rxc4 Rd8 13.Qc1 Be7 14.Ne5 Nxe5 15.Bxe5 O-O 16.Rd1 Nd5 17.Nc3Premium
  5. Line 5… 5.dxc5 Nc6 6.a3 e5 7.Bg5 d4 8.exd4 exd4 9.Ne4 Qd5 10.Nxf6+ gxf6 11.Bxf6 Rg8 12.Qf3 Qxc5 13.O-O-O Bh6+ 14.Kb1 Bg4 15.Qe4+Premium
  6. Line 6… 4.e3 e6 5.Nb5 Na6 6.c3 Qb6 7.a4 Be7 8.Nf3 Nh5 9.dxc5 Bxc5 10.Be5 Nf6 11.b4 Be7 12.Bd4 Qd8 13.Nxa7Premium

2. Early Bf5: gain space with purpose

4 lines

Black's early bishop on f5 gives us a chance to gain space while building a broad centre. We learn when pawn advances gain useful tempi and when development must take priority over another chase. The resulting positions include altered kingside files, exchanges of bishops and active queens. Our aim is to connect those structural changes with piece coordination, rather than assume that space alone supplies an attack against a sound defensive formation.

  1. Line 11.d4 Nf6 2.Nc3 d5 3.Bf4 Bf5 4.f3 e6 5.g4 Bg6 6.h4 h6 7.e3 c5 8.h5 Bh7 9.Nb5 Na6 10.c3 Be7 11.Bd3 Bxd3 12.Qxd3 Nd7 13.Ne2 O-O 14.a4 Bf6 15.Bd6 Re8 16.f4 Nb6 17.g5Premium
  2. Line 2… 4.f3 c6 5.g4 Bg6 6.h4 h5 7.g5 Ng8 8.e4 e6 9.Nge2 Bd6 10.Qd2 Ne7 11.Bxd6 Qxd6 12.Nf4 Nd7 13.O-O-O O-O 14.Qh2Premium
  3. Line 3… 6.h4 h6 7.e3 e6 8.Bd3 Bxd3 9.Qxd3 Nbd7 10.Nge2 Qa5 11.a3 Rc8 12.Kf2 Qd8 13.Ng3Premium
  4. Line 4… 5.g4 Bc8 6.h4 Qb6 7.Na4 Qa5+ 8.c3 e6 9.b4 Qd8 10.e3Premium

3. Slav structure: challenge the active bishop

3 lines

A compact centre with c6 and d5 changes how quickly we can open the position. We use central support and purposeful pawn advances to question Black's active bishop, then adapt our development to the resulting exchanges. The main decisions involve king placement, the bishop pair and the timing of central play. We keep the material balance clear and watch Black's counterbreaks, so a familiar formation does not become a reason to ignore concrete threats.

  1. Line 11.d4 Nf6 2.Nc3 d5 3.Bf4 c6 4.e3 Bf5 5.f3 e6 6.g4 Bg6 7.h4 h6 8.Bd3 Bxd3 9.Qxd3Premium
  2. Line 2… 4.e3 e6 5.Bd3 c5 6.Nb5 Na6 7.c3 c4 8.Bc2 Bd7 9.a4 Bxb5 10.axb5 Nc7 11.Ba4 b6 12.Nf3 Bd6 13.Ne5 O-O 14.Qf3Premium
  3. Line 3… 4.e3 g6 5.Be2 Bg7 6.h4 h6 7.Nf3 Qb6 8.b3 Nbd7 9.Ne5 O-O 10.Qd2 Nxe5 11.Bxe5 Ne4 12.Nxe4 dxe4 13.Bxg7Premium

4. Early e6: adapt the minor pieces

6 lines

When Black supports the centre with e6, our bishops and knights can face several different arrangements. We study active bishop posts, knight exchanges and the central breaks that change the character of the game. Some lines keep an attacking bishop pair; others simplify into a knight-versus-bishop struggle. The useful habit is to assess the exact remaining pieces and pawn targets, finishing development before expecting a central outpost or open file to produce an advantage.

  1. Line 11.d4 d5 2.Nc3 Nf6 3.Bf4 e6 4.e3 Bb4 5.Bd3 c5 6.dxc5 Nbd7 7.Ne2 a6 8.Bg3 Nh5 9.e4 Nxg3 10.hxg3 dxe4 11.Bxe4 Bxc5 12.Nf4 Qb6 13.Nd3 Bd4 14.Qd2Premium
  2. Line 2… 7.Ne2 O-O 8.Bd6 Re8 9.Bb5 Ne4 10.a3 Bxc3+ 11.Nxc3 Nxd6 12.cxd6 a6 13.Bxd7 Qxd7 14.Qd4 Qxd6 15.O-O b6 16.e4 Bb7 17.exd5Premium
  3. Line 3… 7.Ne2 Nxc5 8.a3 Ba5 9.b4 Nxd3+ 10.cxd3 Bc7 11.Bxc7 Qxc7 12.Rc1 Qe7 13.O-O O-O 14.Qb3 Bd7 15.h3Premium
  4. Line 4… 7.Ne2 Bxc5 8.h3 a6 9.Bh2 Qe7 10.O-O O-O 11.e4 d4 12.e5 dxc3 13.exf6 Nxf6 14.Nxc3Premium
  5. Line 5… 5.Bd3 Bxc3+ 6.bxc3 c5 7.dxc5 Qa5 8.Bd6 Nbd7 9.Ne2 Nxc5 10.O-OPremium
  6. Line 6… 4.e3 Be7 5.Bd3 c5 6.dxc5 O-O 7.Nf3 Bxc5 8.O-O Nc6 9.e4 dxe4 10.Nxe4 Nxe4 11.Bxe4 Qf6 12.Qc1Premium

5. Bishop exchanges: judge the new structure

2 lines

Early exchanges can remove one of the pieces that normally defines the Jobava setup. We learn to work with the position that remains, comparing the bishop pair with active knights and recognising how recaptures change the pawn formation. Central support and king safety still guide our development. The endpoint plans focus on accessible targets and useful piece routes, avoiding the assumption that a bishop pair automatically outweighs the opponent's space or central counterplay.

  1. Line 11.d4 d5 2.Nc3 e6 3.Bf4 Bd6 4.e3 Nf6 5.Nf3 O-O 6.Bd3 c5 7.dxc5 Bxc5 8.O-O Nc6 9.e4 d4 10.Ne2 Nd7 11.e5 Qc7 12.Bxh7+ Kxh7 13.Ng5+ Kg8 14.Qd3 Re8 15.Qh7+ Kf8 16.Ne4 Ncxe5 17.Qh8+ Ke7 18.Bg5+ f6 19.Qxg7+ Kd8 20.Nxf6Premium
  2. Line 2… 9.e4 dxe4 10.Nxe4 Nxe4 11.Bxe4 Qf6 12.Qc1 e5 13.Bg5 Qd6 14.Rd1 Qc7 15.c3 Kh8 16.b4 Bb6 17.Bf6Premium

6. Early a6: use the time centrally

4 lines

Black's early a-pawn move gives the queenside a definite shape while leaving central development unfinished. We use that time to support d4, question an active bishop or choose a central expansion suited to the exact move order. The resulting positions range from quiet development to opposite-wing attacks. Our plans remain connected to king safety and the placement of the enemy queen, especially when a pawn advance gains space but also creates a lasting weakness.

  1. Line 11.d4 d5 2.Nc3 Nf6 3.Bf4 a6 4.e3 e6 5.g4 c5 6.g5 Nfd7 7.Nf3 Nc6 8.a3 b5 9.h4 Bb7 10.h5 Nb6 11.Qd2 Be7 12.dxc5 Bxc5 13.O-O-O b4 14.h6 g6 15.axb4 Bxb4 16.Ne5Premium
  2. Line 2… 5.g4 Bb4 6.Ne2 O-O 7.a3 Be7 8.Rg1 Nbd7 9.h4 c5 10.g5 Nh5 11.Bh2Premium
  3. Line 3… 4.e3 g6 5.h4 Bg7 6.h5 gxh5 7.Rxh5 Nxh5 8.Qxh5 c6 9.Nf3 h6 10.O-O-O Nd7 11.Qh2Premium
  4. Line 4… 4.e3 c5 5.dxc5 Qa5 6.Nf3 e6 7.Bd3 Bxc5 8.O-O O-O 9.a3 Be7 10.e4Premium

7. Fianchetto with d5: calculate the open lines

6 lines

Against a kingside fianchetto combined with a pawn on d5, we compare central exchanges with direct play along the h-file. The bishop on g7 can be an important defender, but removing it does not always justify a sacrifice. We follow the resulting material balance and exact piece routes, including positions where an attack offers practical compensation rather than a forced win. Development and attention to Black's central counterplay keep the attacking ideas grounded.

  1. Line 11.d4 Nf6 2.Nc3 d5 3.Bf4 g6 4.e3 Bg7 5.h4 O-O 6.h5 Nxh5 7.Rxh5 gxh5 8.Qxh5 Nd7 9.Qh2 c6 10.Bd3 Nf6 11.Nf3 Bg4 12.Ne5 Bh5 13.Bxh7+ Kxh7 14.g4Premium
  2. Line 2… 6.h5 c5 7.hxg6 hxg6 8.Qd2 Nc6 9.Nge2 Re8 10.dxc5 e5 11.Bg5 d4 12.Nb5 b6 13.Nd6 Re6 14.Ng3 bxc5 15.Nxc8 Rxc8 16.Bc4 Re7 17.Rd1Premium
  3. Line 3… 7.hxg6 fxg6 8.dxc5 Nc6 9.Nf3 Qa5 10.Qd2 Qxc5 11.Be2 Bf5 12.Nd4 e5 13.Nxf5 exf4 14.Nxg7 Kxg7 15.O-O-OPremium
  4. Line 4… 5.h4 h5 6.Nf3 O-O 7.Be2 c5 8.dxc5 Qa5 9.O-O Qxc5 10.Nb5 a6 11.Nc7 Ra7 12.a3 b6 13.b4 Qc6 14.Nb5 axb5 15.Bxb8Premium
  5. Line 5… 5.h4 h6 6.Nf3 Bg4 7.Be2 c6 8.Ne5 Bxe2 9.Qxe2 Nbd7 10.O-O-O h5 11.f3 Nxe5 12.Bxe5Premium
  6. Line 6… 5.h4 c5 6.Nb5 Na6 7.c3 Bg4 8.Be2 Bxe2 9.Qxe2 O-O 10.Nf3Premium

8. Flexible g6: choose the central advance

5 lines

When Black fianchettos without immediately occupying d5, we can claim central space and choose an active development plan. The branches show why that freedom requires calculation: an early queen excursion can meet a knight invasion, while central exchanges can lead to a balanced queenless game. We also examine bishop exchanges near the king and the limits of a wing pawn advance. The right plan follows the centre and the exact remaining defenders.

  1. Line 11.d4 Nf6 2.Nc3 g6 3.Bf4 Bg7 4.e4 d6 5.Qd2 Nc6 6.O-O-O O-O 7.Nf3 Bg4 8.Qe3 Nd7 9.Bg5 Qe8 10.Bh6 Bxf3 11.gxf3 e5 12.Bxg7 Kxg7 13.dxe5 Qxe5 14.Nd5Premium
  2. Line 2… 5.Qd2 c6 6.Bh6 Bxh6 7.Qxh6 e5 8.Nf3 Qe7 9.dxe5 dxe5 10.Bc4 b5 11.Bb3 Be6 12.O-OPremium
  3. Line 3… 4.e4 d5 5.e5 Ne4 6.Nxe4 dxe4 7.Bc4 c5 8.dxc5 O-O 9.Qxd8 Rxd8 10.c3 Nc6 11.e6 Bxe6 12.Bxe6 fxe6 13.Ne2Premium
  4. Line 4… 4.e4 O-O 5.e5 Nh5 6.Bd2 c5 7.g4 cxd4 8.Nce2 Nc6 9.gxh5Premium
  5. Line 5… 3.Bf4 c5 4.dxc5 Qa5 5.e4 Nxe4 6.Qd4 Nf6 7.b4 Qd8 8.Nb5 Na6 9.Qe3 Nxb4 10.Nd6#Premium

9. Chigorin knight: exploit central space

3 lines

Black's early knight on c6 changes the central contest because it blocks the c-pawn's immediate advance. We can occupy e4 and use a d-pawn push to gain time against that knight. The resulting queen moves must contribute to development, while bishop exchanges can lead to a balanced queenless position. Another branch demonstrates a concrete knight fork against an exposed king. We calculate those tactics precisely instead of treating every gain of space as a winning attack.

  1. Line 11.d4 d5 2.Nc3 Nc6 3.e4 dxe4 4.d5 Ne5 5.Qd4 Ng6 6.Qxe4 Nf6 7.Qa4+ Bd7 8.Bb5 a6 9.Bxd7+ Qxd7 10.Qxd7+ Kxd7 11.Nf3Premium
  2. Line 2… 6.Qxe4 a6 7.h4 Nf6 8.Qa4+ Bd7 9.Qb3 e6 10.h5 Ne5 11.Bf4 Bd6 12.h6 g6 13.O-O-OPremium
  3. Line 3… 3.e4 Nf6 4.e5 Nd7 5.Nxd5 Ndb8 6.Nc3 Qxd4 7.Be3 Qxd1+ 8.Rxd1 Nxe5 9.Nd5 Kd8 10.Nb6+Premium

10. Early d5 and c5: resolve the pawn tension

4 lines

Two early central pawn challenges ask us to choose how to open the position before the usual bishop formation is complete. We develop with check, recover material and use the d-file when its routes are clear. Several branches simplify into queenless positions; one contains a fully calculated mating sequence after a sacrifice. The common task is to follow the complete exchanges, count the resulting material and connect the next development move with the king's safety.

  1. Line 11.d4 d5 2.Nc3 c5 3.e4 dxe4 4.Bb5+ Bd7 5.dxc5 Nf6 6.Be3 e6 7.Nge2 Qc8 8.Qd4Premium
  2. Line 2… 4.Bb5+ Nd7 5.dxc5 Nf6 6.Qd4 e5 7.Qxe5+ Be7 8.Be3 O-O 9.Bxd7 Nxd7 10.Qg3 Nxc5 11.Rd1 Qa5 12.Ne2Premium
  3. Line 3… 4.Bb5+ Nc6 5.Nge2 cxd4 6.Nxd4 Bd7 7.Bxc6 Bxc6 8.Nxc6 Qxd1+ 9.Kxd1 bxc6 10.Nxe4Premium
  4. Line 4… 3.e4 cxd4 4.Qxd4 dxe4 5.Qxd8+ Kxd8 6.Bf4 Nf6 7.O-O-O+ Bd7 8.f3 exf3 9.Nxf3 Ke8 10.Nb5 Na6 11.Ne5 Bc6 12.Nxc6 bxc6 13.g3 cxb5 14.Bxb5+ Nd7 15.Bxd7+ Kd8 16.Bb5+ Kc8 17.Bxa6#Premium

11. Early bishops: build a supported centre

4 lines

Black can develop its queenside bishop before committing the e-pawn or bringing out a knight. We challenge that placement with a supported centre and choose pawn advances that gain useful tempi. The altered files and doubled pawns require exact assessment, especially after queens are exchanged. Another branch uses a knight fork against queen and bishop, where the material count is temporarily misleading. We complete development and avoid confusing a tactical threat with material already recovered.

  1. Line 11.d4 d5 2.Nc3 Bf5 3.f3 Bg6 4.e4 dxe4 5.fxe4 e5 6.Nf3 exd4 7.Qxd4 Qxd4 8.Nxd4 c6 9.h4 h5 10.Bf4 Bb4 11.Nf5 Nf6 12.Nxg7+ Kf8 13.Nf5 Bxc3+ 14.bxc3 Nxe4 15.Nd6 Nxd6 16.Bxd6+ Kg7 17.O-O-OPremium
  2. Line 2… 3.f3 e6 4.e4 dxe4 5.fxe4 Bg6 6.Nf3 Nf6 7.Bd3 Be7 8.O-O O-O 9.e5 Nd5 10.Bxg6 hxg6 11.Ne4Premium
  3. Line 3… 2.Nc3 e5 3.dxe5 d4 4.Nb5 c5 5.e3 a6 6.Na3 b5 7.Nf3 Nc6 8.Be2Premium
  4. Line 4… 2.Nc3 Bg4 3.f3 Bh5 4.Nh3 f6 5.Nxd5 Qxd5 6.Nf4Premium

12. Pin on c3: choose the recapture

2 lines

The bishop pin on c3 asks us to coordinate both knights before deciding how to complete development. We compare an exchange on f4 with exchanges on c3, following how the recaptures change the bishop balance and pawn formation. The resulting positions call for either a patient kingside fianchetto or active queen play. We keep the centre supported, secure the king and judge the exact structure instead of assuming every doubled pawn is a lasting disadvantage.

  1. Line 11.d4 Nf6 2.Nc3 e6 3.Bf4 Bb4 4.e3 Nd5 5.Ne2 Nxf4 6.exf4 O-O 7.a3 Be7 8.g3 d5 9.Bg2Premium
  2. Line 2… 5.Ne2 Nxc3 6.Nxc3 Bxc3+ 7.bxc3 d5 8.Qg4Premium

13. Early e6 and Bb4: coordinate under pressure

3 lines

An early bishop on b4 can arrive before Black's kingside knight, giving the pin a distinct move order. We support d4 and c3, question the bishop with a3 and prepare the queen and king for central play. One branch simplifies to an active rook against an isolated pawn; another offers attacking chances with opposite-wing castling. The practical decisions depend on the central pawn commitments, so the same recapture can have different consequences in different branches.

  1. Line 11.d4 e6 2.Nc3 Bb4 3.Bf4 c5 4.e3 Qa5 5.Ne2 cxd4 6.exd4 Nf6 7.a3 Be7 8.Qd3 O-O 9.O-O-O Nc6 10.d5 exd5 11.Nxd5 Nxd5 12.Qxd5 Qxd5 13.Rxd5Premium
  2. Line 2… 4.e3 d5 5.Ne2 cxd4 6.exd4 Nf6 7.a3 Bd6 8.Qd2 O-O 9.O-O-O Nc6 10.Kb1 a6 11.g4 Nxg4 12.Rg1 Nxf2 13.Bxd6 Qxd6 14.Qh6 g6 15.Nf4Premium
  3. Line 3… 3.Bf4 Nf6 4.e3Premium

14. First-move c5: develop after the capture

2 lines

We answer the immediate c-pawn challenge by capturing and using the time needed to recover that pawn for central occupation and development. Most positions remain balanced when Black coordinates accurately. A sharper branch shows the tactical cost of ignoring an attacked knight and pursuing material with the queen. We follow that sequence through its changing material balance, distinguishing a supported king attack from a vague hope that activity will compensate for sacrificed rooks or pawns.

  1. Line 11.d4 c5 2.dxc5 e6 3.Nc3 Nf6 4.e4 Qa5 5.Bd3 Bxc5 6.Nf3 d6 7.a3 a6 8.Bg5 Qd8 9.O-OPremium
  2. Line 2… 2.dxc5 Nf6 3.Nc3 e6 4.e4 Bxc5 5.e5 Qb6 6.exf6 Bxf2+ 7.Ke2 Bxg1 8.Rxg1 Qxg1 9.Qd6 Nc6 10.Be3 Qh1 11.fxg7 Rg8 12.Ne4Premium

15. Dutch formation: challenge the king cover

5 lines

Black's f-pawn advance creates space while changing the squares around its king. We adapt the bishop's development and compare central expansion with direct kingside pawn challenges. Some lines involve a pawn or exchange sacrifice; others gain material through concrete queen tactics. Our endpoint assessments keep those different outcomes distinct. We develop behind the initiative, calculate which diagonals are actually open and watch our own king before committing to another forcing attack.

  1. Line 11.d4 f5 2.Nc3 Nf6 3.Bg5 d5 4.e3 e6 5.Nf3 a6 6.g4 fxg4 7.Ne5 Be7 8.h3 g3 9.f4Premium
  2. Line 2… 3.Bg5 g6 4.h4 Bg7 5.h5 Nxh5 6.e4 h6 7.Rxh5 gxh5 8.Qxh5+ Kf8 9.Bh4 Qe8 10.Qxf5+ Qf7 11.Nd5Premium
  3. Line 3… 3.Bg5 d6 4.Bxf6 exf6 5.e3 c6 6.Bd3 Na6 7.Qf3 g6 8.Bxa6 bxa6 9.Qxc6+ Bd7 10.Qxa6Premium
  4. Line 4… 2.Nc3 e6 3.e4 fxe4 4.Nxe4 Be7 5.Nf3 Nf6 6.Bd3 d6 7.Qe2 O-O 8.h4 Qe8 9.Nfg5 Nxe4 10.Qxe4 Rf5 11.g4Premium
  5. Line 5… 2.Nc3 d5 3.Bf4 e6 4.g4 Nf6 5.gxf5 exf5 6.e3 Bd6 7.Qf3 Be6 8.O-O-OPremium