Chess Opening Theory/1. d4/1...d5/2. c4/2...Nc6/3. Nf3

Chigorin Defence D07 3. Nf3 White opts to defend the d-pawn. Black should respond by developing actively and posing practical problems for White. /3...Bg4/ is the main line from this position. Usually this move wouldn't be very effective with White's e-pawn still on e2, but White can't respond with the usual Ne5 because Black controls that square with their own knight. White should therefore respond with either 4. Nc3 or 4. cxd5 instead. /3...e5/ is the slightly more esoteric Lazard gambit. Ideas in this line are very similar to the Albin countergambit, with slight differences due to the knights on f3 and c6. Theory table 3. ... Bg4 4. cxd5 Bxf3 5. gxf3 Qxd5 + 3. ... ... 4. Nc3 e6 5. cxd5 exd5 + Lazard gambit 3. ... e5 4. dxe5 Bb4+ 5. Bd2 dxc4 + 3. ... ... 4. Nxe5 Nxe5 5. dxe5 d4 + References See also Chigorin Defence