Chigorin Defense

The Chigorin Defense, 1. d4 d5 2. c4 Nc6, is catalogued under the Queen's Gambit Declined, but it is usually treated as a separate defense to the Queen's Gambit. Black does not reinforce d5 with a pawn at all. The knight develops at once and aims at d4. The c8-bishop is left free to come out, often to g4, and the pawn structure becomes unbalanced. The cost is that the knight blocks the c-pawn, so the usual freeing breaks ...c5 and ...c6 are no longer available. Black's counterplay therefore rests on piece activity and on ...e5 rather than on a solid chain. Unusually for a queen's pawn opening, White's d-pawn quickly comes under fire, and White must either defend it or seek counterplay elsewhere.

3. Nc3 is the most popular reply. It adds pressure to d5, and Black usually answers by capturing on c4. After 3. Nc3 dxc4 4. Nf3 the game enters the Janowski Variation, and 4...Nf6 there is known as the Modern Gambit. Black can instead strike with 3. Nc3 e5, the Tartakower Gambit. The second most common choice is 3. cxd5, the Exchange Variation. After 3. cxd5 Qxd5 the queen recaptures centrally and joins the knight against d4, so Black can build pressure quickly.

3. Nf3 is the line designated as the main line, with 3. Nf3 Bg4 pinning the knight that guards d4. It is regarded as a more passive approach than 3. Nc3, and White may have to spend some time defending. 3. Nf3 e5 is the Lazard Gambit, a pawn offer aimed at breaking open the center before White has finished developing.

The defense is named after Mikhail Chigorin, who first used it against Steinitz in 1889. Its early outings often turned into Queen's Gambit Declined structures with the knight misplaced on c6, where it obstructs the c-pawn. The opening moves of what became the main line already appeared in 1895, in a consultation game in which Chigorin and Schiffers faced Blackburne and Pillsbury. Theory has grown in recent decades, partly because players of the Black Knights' Tango need playable lines that can transpose into the Chigorin.

The engine gives White a slight edge after 2...Nc6, and in practice White scores noticeably better than Black. The opening remains a sideline compared with 2...e6 or 2...c6, but it leads to imbalanced positions that reward concrete play.