Founding offer: your first full year of everything for $24.99.

Claim founding price
chesstrophy

Quick navigation

Browse the app and open your account actions from this drawer.

Theme Switch light and dark mode
Continue with Google

Nimzo-Indian Defense: St. Petersburg Variation

1. Main line

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6

Choose a line

Guest preview: 5 of 12 lines

Unlock the full course, save your progress, and keep training across every line.

Start your 14-day trial