C40: King's knight opening

1. e4 e5 2. Nf3

King's knight opening

C40 Sub-variants:

King's knight opening
1. e4 e5 2. Nf3

Gunderam defence
1. e4 e5 2. Nf3 Qe7

Greco defence
1. e4 e5 2. Nf3 Qf6

Damiano's defence
1. e4 e5 2. Nf3 f6

QP counter-gambit (elephant gambit)
1. e4 e5 2. Nf3 d5

QP counter-gambit, Maroczy gambit
1. e4 e5 2. Nf3 d5 3. exd5 Bd6

Latvian counter-gambit
1. e4 e5 2. Nf3 f5

Latvian, Nimzovich variation
1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3

Latvian, Fraser defence
1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6

Latvian gambit, 3.Bc4
1. e4 e5 2. Nf3 f5 3. Bc4

Latvian, Behting variation
1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6

Latvian, Polerio variation
1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5

Latvian, corkscrew counter-gambit
1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6

Overview

Games on Database:

400148

Last Played:

Dec 2025

Overall score:

39.4%

33%

27.6%

Download master games

Played frequently by:

White
Viswanathan Anand	617 games
Sergey Karjakin	428 games
Alexei Shirov	416 games

Black
Ivan Sokolov	487 games
Levon Aronian	483 games
Oleg M Romanishin	456 games

Possible continuations:

2... Nc6

335524

39 %

32.9 %

28.1 %

2... Nf6

43753

38.4 %

39.1 %

22.5 %

2... d6

16615

47.1 %

24 %

28.9 %

2... f5

1779

48 %

18 %

34 %

2... d5

1080

51.4 %

15.6 %

33.1 %

2... Qe7

565

43 %

23.4 %

33.6 %

2... Bc5

329

67.5 %

24.3 %

2... f6

158

79.7 %

15.2 %

2... Bd6

106

74.5 %

17 %

2... Qf6

68.2 %

24.7 %

2... Bb4

78 %

17.1 %

2... c6

67.9 %

21.4 %

2... g6

69.2 %

30.8 %

2... Be7

87.5 %

2... b6

50 %

37.5 %

2... a6

85.7 %

14.3 %

2... c5

100 %

2... Na6

100 %

2... Nh6

75 %

25 %

2... Qh4

100 %

2... h6

66.7 %

33.3 %

2... Ne7

33.3 %

2... a5

66.7 %

33.3 %

2... Qg5

100 %