Nimzo-Indian Defense: Ragozin Defense

An entry in the Encyclopedia of Chess Openings (ECO E48), reached after 13 half-moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O.

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

Nimzo-Indian Defense: Ragozin Defense is an opening in the Encyclopedia of Chess Openings, classified under code E48. ECO group E (E00–E99) covers Indian defences against 1.d4, covering the Nimzo-Indian, Queen's Indian, King's Indian and Catalan systems. This particular variation is reached after 13 half-moves from the starting position, with the move sequence 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O.

It belongs to the Nimzo-Indian Defense family. Within that family this is a sub-variation (the Ragozin Defense line).

The opening sequence in prose form: 1.d4 Nf6, 2.c4 e6, 3.Nc3 Bb4, 4.e3 O-O, 5.Bd3 d5, 6.Nf3 Nc6. 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.