About this opening
Old Indian Defense: Tartakower-Indian is an opening in the Encyclopedia of Chess Openings,
classified under code A54. ECO group A (A00–A99)
covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached
after 6 half-moves from the
starting position, with the move sequence 1. d4 Nf6 2. c4 d6 3. Nf3 Bg4.
It belongs to the Old Indian Defense family. Within that family this is a sub-variation (the Tartakower-Indian line).
The opening sequence in prose form: 1.d4 Nf6, 2.c4 d6, 3.Nf3 Bg4. 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.