Nimzo-Indian Defense

...Bb4 pins, doubles White's pawns, and fights for e4 without touching the center. Every major White system met with a clear plan.

• Learn–Easy Memory: drill the points where your lines split.
• Practice–Play whole lines against an opponent that follows your book.
• DrillAll courses–Spaced review of every course's due moves.
• Time–Your prompts against a 60-second clock.
• PuzzlesAll coursesReal games from your positions: find the missed move.
• Arena–Rated games from this opening. Leaving prep costs rating.