E12: Queen's Indian, Petrosian system

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3

Queen's Indian, Petrosian system

E12 Sub-variants:

Queen's Indian defence
1. d4 Nf6 2. c4 e6 3. Nf3 b6

Queen's Indian, Miles variation
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bf4

Queen's Indian, Petrosian system
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3

Queen's Indian, 4.Nc3
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3

Queen's Indian, 4.Nc3, Botvinnik variation
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 g5 7. Bg3 Nh5

Overview

Games on Database:

10550

Last Played:

Aug 2026

Overall score:

36.5%

37.9%

25.6%

Download master games

Played frequently by:

White
Ivan Farago	86 games
Aleksey Dreev	85 games
Miso Cebalo	77 games

Black
Eduardas Rozentalis	50 games
Ivan Farago	47 games
Anatoly Karpov	45 games

Possible continuations:

4... Bb7

6557

37.6 %

38.6 %

23.8 %

4... Ba6

2730

33 %

37.7 %

29.3 %

4... c5

754

37.1 %

33.4 %

29.4 %

4... d5

298

36.9 %

39.9 %

23.2 %

4... Be7

125

49.6 %

29.6 %

20.8 %

4... Ne4

30.8 %

26.9 %

42.3 %

4... a5

69.6 %

17.4 %

4... c6

31.6 %

47.4 %

21.1 %

4... g6

36.4 %

27.3 %

4... d6

100 %