Caro-Kann Defence

White pushes 3.e5, gaining space and restricting Black's knight on f6. Black typically undermines the centre with ...c5 and develops the light-squared bishop to f5. The resulting positions feature a French-like structure but with Black's bishop actively placed outside the chain.

1. e4 c6 2. d4 d5 3. e5 Bf5…

White trades on d5 early, creating a symmetrical pawn structure. While considered less ambitious, it leads to clear, easy-to-play positions where both sides battle for small advantages. White often aims for a minority attack on the queenside.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

White plays 3.exd5 cxd5 4.c4, creating an isolated queen's pawn structure similar to the Queen's Gambit. This transforms the game into a dynamic battle where White gets active pieces and attacking chances in exchange for a structural weakness.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

White develops both knights early with 3.Nc3 and 4.Nf3 (or vice versa), aiming for rapid development. After 3...dxe4 4.Nxe4, Black often plays ...Nf6 leading to the sharp 5.Nxf6+ lines or the calmer ...Nd7 approach.

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4…

White boldly plays 3.f3, sacrificing a tempo to maintain the e4 pawn and build a strong centre. This aggressive approach leads to sharp, unbalanced positions where White aims for a powerful pawn centre and quick development, while Black must play precisely to exploit the weakened king position.

1. e4 c6 2. d4 d5 3. f3 dxe4…

Black plays 3...Nf6 4.Nxf6+ gxf6 (instead of exf6), accepting doubled pawns for a half-open g-file and dynamic piece play. This less common recapture leads to original positions where Black's active rook on g8 and bishop pair can generate real attacking chances.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

Black delays developing the light-squared bishop and instead plays 4...Nd7, keeping the position flexible. Named after Viktor Korchnoi, this modern treatment allows Black to recapture on f6 with the knight, maintaining a more harmonious pawn structure while preparing ...Ngf6 and ...e6.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

The classical Panov-Botvinnik tabiya: White accepts an isolated queen's pawn on d4 in exchange for active piece play, with Bc4 eyeing the Black king and rooks coming to c1 and e1. Black blockades on d5 and aims to neutralise White's initiative before exploiting the structural weakness in the endgame. Essential IQP theory.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

Black pins the c3 knight with ...Bb4 in the Panov, aiming to damage White's pawn structure with ...Bxc3 if needed. After cxd5 Nxd5 Bd2 Nc6, the position becomes a strategic battle around the d4 pawn and the long diagonals - a sharper alternative to ...Be7.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

Activating the light-squared bishop before White's minority attack.

In the Exchange Variation White develops with Bd3, c3 and Bf4, aiming for a minority attack. Black frees the light-squared bishop with ...Bg4 and challenges the queenside with ...Qd7 and ...Rc8.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

Neutralising early pressure on f7 in the Karpov Variation.

After 4...Nd7 White develops the bishop to c4 and pressures f7 with Ng5. Black must handle the pin and pressure accurately with ...Ngf6, ...e6 and ...Nb6, after which the structure is very solid.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

Blockading and neutralising an isolated queen's pawn position.

Black meets the Panov-Botvinnik Attack with a Queen's Gambit Declined style setup: ...e6 and ...Be7, keeping a firm grip on d5. Play often reaches an isolated queen's pawn middlegame where blockading skills decide the game.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

The classical bishop development against White's Nd2 move order.

White recaptures on e4 with the knight from d2, avoiding the ...Bb4 pin. Black proceeds with the classical plan ...Bf5, ...h6 and ...Nd7, aiming for a rock-solid structure with easy development.

1. e4 c6 2. d4 d5 3. Nd2 dxe4…

After 4...Nf6 5.Nxf6+, Black recaptures with the g-pawn rather than the e-pawn, accepting doubled f-pawns in exchange for an open g-file and active piece play. Named after Bronstein and Larsen, this enterprising line steers the game into sharp, unbalanced positions where Black often castles queenside and launches a kingside attack along the half-open file.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

Tal's aggressive 4.h4 lunges at the bishop on f5 before Black is fully developed. After 4...h6 5.g4 Bd7, White has dramatically expanded on the kingside, but loosened the king's shelter. The resulting positions are double-edged and theoretical, demanding accurate defence and bold counterplay from Black.

1. e4 c6 2. d4 d5 3. e5 Bf5…

Counterattacking in the centre while White expands on the kingside.

White develops the knight to c3 before chasing the bishop with g4. Black answers ...Bg6 and counters in the centre with ...c5, accepting a sharp race where every tempo counts.

1. e4 c6 2. d4 d5 3. e5 Bf5…

Taking on c4 and surviving the sharp d5 push in the Panov.

White pins the knight and threatens to build a big centre, and Black grabs the c4 pawn before White pushes d5. The position becomes sharp immediately, and knowing the ...Na5 retreat is essential.

1. e4 c6 2. d4 d5 3. exd5 cxd5…

Black plays the flexible 3...g6 against the Advance, fianchettoing the bishop before committing the centre. The Modern (or Gurgenidze) Variation aims for slow, manoeuvring play where Black accepts a small space disadvantage in exchange for a solid, flexible structure. White typically responds with c3 and Nf3, keeping a comfortable space advantage.

1. e4 c6 2. d4 d5 3. e5 g6…

Karpov's pet line: Black recaptures with 4...Nd7 instead of 4...Bf5, preparing ...Ngf6 to challenge the e4 knight without weakening the kingside. After the trade on f6, Black gets a flexible, super-solid structure with the light-squared bishop still ready to deploy. A favourite of positional players who like quiet manoeuvring battles.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

The deep mainline of the Classical: White gains kingside space with h4-h5, harassing the bishop to h7 before exchanging on d3. The resulting middlegame features White's space advantage versus Black's bulletproof structure - a battle of patient manoeuvring that has defined Caro-Kann theory for decades.

1. e4 c6 2. d4 d5 3. Nc3 dxe4…

Nigel Short's restrained treatment of the Advance: White develops calmly with Nf3, Be2, Be3 and short castling, accepting a small space edge without committing to sharp pawn pushes. Black equalises gradually with ...c5 and the typical ...Ne7-f5 manoeuvre. A modern positional way to handle the Advance.

1. e4 c6 2. d4 d5 3. e5 Bf5…

A flexible Advance setup with Be2, O-O, and Nbd2-Nb3 targeting the c5 break and supporting a future Nbd4. White avoids the sharp h4 and Nh3 lines, instead playing for slow, structural pressure. Popular at elite level for its low theoretical maintenance and clear plans.

1. e4 c6 2. d4 d5 3. e5 Bf5…

Against the Two Knights, Black pins with 3...Bg4 and trades on f3, conceding the bishop pair but undermining White's central control. After Qxf3 d3 e6 g3, both sides face a long manoeuvring game with White's bishops versus Black's solid structure - a classical positional debate.

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4…

The principled response to the Fantasy Variation: Black plays 3...e6 to unblock the bishop via the queenside (...b6 and ...Ba6 or ...Bb7), then pins with ...Bb4. The position becomes a complex strategic battle where White's f3 supports e4 but slows kingside development - giving Black time to challenge the centre.

1. e4 c6 2. d4 d5 3. f3 e6…

White plays 2.c4 immediately, transposing into Panov-style positions without allowing Black the Classical or Advance setups. After 2...d5 3.exd5 cxd5 4.cxd5 Nf6, Black recovers the pawn with a Grünfeld-like structure. A practical surprise weapon that limits Black's repertoire choices.

1. e4 c6 2. c4 d5 3. exd5 cxd5…

Trading structure for rapid development against the Advance Variation.

Instead of developing the bishop, Black strikes at the base of the chain immediately with 3...c5. The pawn on c5 can be recaptured later, and Black gains fast development and open lines against White's centre.

1. e4 c6 2. d4 d5 3. e5 c5…

A flexible hybrid setup that avoids main-line Caro-Kann theory.

Black combines the Caro-Kann pawn on c6 with a kingside fianchetto, aiming for a hybrid Modern Defence structure. The plan is to blunt White's centre and undermine it later with ...d5 or ...Nf5 ideas.

1. e4 c6 2. d4 d5 3. Nc3 g6…