Opening explorer

Reference repertoire lines. Style profiles bias the engine toward their preferred openings when a move is close to best.

B90

Sicilian Defence, Najdorf

black repertoire

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6

White 36% · Draw 32% · Black 32%

D37

Queen's Gambit Declined

white repertoire

1. d4 d5 2. c4 e6 3. Nf3 Nf6

White 35% · Draw 45% · Black 20%

E20

Nimzo-Indian Defence

black repertoire

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

White 34% · Draw 41% · Black 25%

C65

Ruy Lopez, Berlin Defence

white repertoire

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6

White 38% · Draw 40% · Black 22%

E60

King's Indian Defence

black repertoire

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7

White 39% · Draw 30% · Black 31%

D43

Semi-Slav Defence

black repertoire

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6

White 34% · Draw 45% · Black 21%

A15

English Opening

white repertoire

1. c4 Nf6

White 36% · Draw 42% · Black 22%

B12

Caro-Kann Defence

black repertoire

1. e4 c6 2. d4 d5

White 37% · Draw 39% · Black 24%

E04

Catalan Opening

white repertoire

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2

White 37% · Draw 44% · Black 19%

C11

French Defence, Classical

black repertoire

1. e4 e6 2. d4 d5 3. Nc3 Nf6

White 38% · Draw 36% · Black 26%

C42

Petroff Defence

black repertoire

1. e4 e5 2. Nf3 Nf6

White 33% · Draw 47% · Black 20%

D85

Grünfeld Defence, Exchange

black repertoire

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5

White 37% · Draw 38% · Black 25%

C45

Scotch Game

white repertoire

1. e4 e5 2. Nf3 Nc6 3. d4

White 38% · Draw 36% · Black 26%

B23

Sicilian, Closed

white repertoire

1. e4 c5 2. Nc3

White 37% · Draw 33% · Black 30%

A57

Benko Gambit

black repertoire

1. d4 Nf6 2. c4 c5 3. d5 b5

White 42% · Draw 27% · Black 31%

A45

Trompowsky Attack

white repertoire

1. d4 Nf6 2. Bg5

White 36% · Draw 35% · Black 29%