Tree path 5 levels Nimzo-Indian Defense › Rubinstein System › Nimzo-Indian Defense: St. Petersburg Variation › Nimzo-Indian Defense: St. Petersburg Variation › Nimzo-Indian Defense: St. Petersburg Variation
E43

Nimzo-Indian Defense: St. Petersburg Variation

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Overview

Nimzo-Indian Defense: St. Petersburg Variation is a named branch in the Indian Defenses group of chess theory, classified under ECO E43.

The Indian Defenses group covers Indian defences — hypermodern lines where Black challenges the centre with pieces rather than pawns.

Play reaches this position via 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O, after 12 plies of opening development.

In the opening tree, this line branches off from Nimzo-Indian Defense: St. Petersburg Variation, part of the broader Nimzo-Indian Defense system.

It continues primarily into one named line, Nimzo-Indian Defense: St. Petersburg Variation.

In total, the branch covers 4 sub-variations across all depths.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code
E43
Group
Indian Defenses (E)
Plies
12
Parent
Nimzo-Indian Defense: St. Petersburg Variation
Direct variations
1
Total in subtree
4

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Variations (1)

Show all 4 sub-variations (full subtree)