Tarrasch Defense: Classical Variation, Carlsbad Variation

An entry in the Encyclopedia of Chess Openings (ECO D34), reached after 17 half-moves: 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5.

Black rook — Use ← → arrows or click moves to step through.

Black bishop — Use ← → arrows or click moves to step through.

End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Tarrasch Defense: Classical Variation, Carlsbad Variation is an opening in the Encyclopedia of Chess Openings, classified under code D34. ECO group D (D00–D99) covers closed games and semi-closed games beginning 1.d4 d5, covering the Queen's Gambit, Slav, Grünfeld and related queen-pawn structures. This particular variation is reached after 17 half-moves from the starting position, with the move sequence 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5.

It belongs to the Tarrasch Defense family. Within that family this is a level-2 branch (the Classical Variation → Carlsbad Variation line). The immediate parent line is Tarrasch Defense: Classical Variation, transitioned via 9.Bg5.

The opening sequence in prose form: 1.d4 d5, 2.c4 e6, 3.Nc3 c5, 4.cxd5 exd5, 5.Nf3 Nc6, 6.g3 Nf6. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.