1...d5 against 1.Nf3
1.Nf3 d5 · you play black
5 chapters, 8 moves deep. That is all of it at your level.
Course progress
0 of 415 decisions
0 still learning · 415 not asked yet
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At your level
Level
Improving
Depth
16 plies of this opening
Chapters
5
Decisions
415 of 636
0/415
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 you are most likely to fall for
1.Nf3 d5 2.e3 Nc6 3.b3 e5 4.Bb2 Bd6 5.Bb5
e4 — played 10% of the time here.
You score 24% after it, against 49% for everything else played from this position, over 97 games.
Instead:
Qe7
54%
Nf6
53%
f6
53%
1.Nf3 d5 2.b4 e6 3.Bb2
Bxb4 — played 13% of the time here.
You score 17% after it, against 47% for everything else played from this position, over 52 games.
Instead:
Nf6
53%
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 Lichess Stockfish evaluations (database.lichess.org) (CC0 1.0 Universal), covering 88% of this course.