Nimzo-Larsen Attack
1.b3 · you play white
7 chapters, 8 moves deep, get you to 90% of what you will actually meet. The other 2 cover the last 5%.
Course progress
0 of 162 decisions
0 still learning · 162 not asked yet
2 more chapters are below the depth for your level, together 5% of what you meet.
Drill this opening
Any chapter or study, asked cold — whether or not you owe it. Nothing here is unlocked by anything else.
At your level
Level
Improving
Depth
16 plies of this opening
Chapters
7
Decisions
162
0/162
How this goes wrong at your level
Counted from 4,500,000 games by players in your band. These are moves that get played often and then lose — no engine was asked for an opinion.
What your opponents fall for
1.b3 g6 2.Bb2
Bg7 — played 8% of the time here.
They score 19% after it, against 49% for everything else played from this position, over 139 games.
They should play:
Nf6
51%
f6
42%
Found by testing 94,688 decisions in your band’s games and keeping only those where the drop in score is more than four standard errors below the alternatives. About 3.17 of these would be expected by chance alone.
Your moves are chosen by the engine and checked against 3,439,091 games (Lichess Elite (2500+ vs 2300+), 2024-12 → 2025-11); their replies are what people actually play. Evaluations from Stockfish 17.1, our own run at depth 18 (CC0 1.0 Universal), covering 100% of this course.