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1...e5

1.e4 e5 · you play black

2 chapters, 8 moves deep, get you to 93% of what you will actually meet. The other 2 cover the last 4%.

Masti the Monkey saying hello
I show you every line first. Then I ask, and I only teach the moves you miss.

Course progress

0 of 261 decisions

0 still learning · 261 not asked yet

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Train chapter 1
Drill

2 more chapters are below the depth for your level, together 4% 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

2

Decisions

261 of 455

0/261

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

— the 5 costliest of 59

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5

Nxd5 — played 26% of the time here.

You score 38% after it, against 51% for everything else played from this position, over 3,491 games.

Instead:

b5

56%

Nd4

52%

Na5

51%

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Ng5 h6 5.Nxf7 Kxf7 6.Bc4+

Ke8 — played 34% of the time here.

You score 2% after it, against 53% for everything else played from this position, over 620 games.

Instead:

Kg6

58%

d5

53%

Ke7

52%

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d4 exd4 5.c3

dxc3 — played 52% of the time here.

You score 36% after it, against 47% for everything else played from this position, over 2,736 games.

Instead:

d3

53%

d6

48%

Qf6

48%

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Ng5

h6 — played 30% of the time here.

You score 38% after it, against 50% for everything else played from this position, over 1,999 games.

Instead:

d5

62%

d6

56%

Bb4+

53%

1.e4 e5 2.d4 Nc6 3.d5

Nd4 — played 8% of the time here.

You score 32% after it, against 52% for everything else played from this position, over 624 games.

Instead:

Nce7

53%

Nb4

52%

Nb8

50%

What your opponents fall for

— the 5 costliest of 42

1.e4 e5 2.Nf3 Nc6 3.Bc4 f5

exf5 — played 33% of the time here.

They score 38% after it, against 52% for everything else played from this position, over 3,448 games.

They should play:

d4

55%

d3

54%

Bxg8

49%

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4

Nxe5 — played 19% of the time here.

They score 25% after it, against 54% for everything else played from this position, over 1,477 games.

They should play:

d3

56%

Bxf7+

55%

O-O

55%

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6

Nxe5 — played 21% of the time here.

They score 43% after it, against 54% for everything else played from this position, over 1,341 games.

They should play:

h3

56%

O-O

55%

Nc3

53%

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Nxe5 Bc5

Nxc6 — played 73% of the time here.

They score 39% after it, against 63% for everything else played from this position, over 563 games.

They should play:

Nf3

68%

Nd3

59%

1.e4 e5 2.Nf3 Nc6 3.d3 Bc5 4.Nxe5 Nf6 5.Nxc6 dxc6

Bg5 — played 9% of the time here.

They score 18% after it, against 50% for everything else played from this position, over 309 games.

They should play:

f3

62%

Be3

54%

Be2

50%

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 86% of this course.