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

diagram

White to move
16,391 games · 1840-2025

move

games

white wins - draws - black wins %

4. O-O

9,821

30.3%

48.7%

21%

4. Nc3

6,385

34.3%

40.3%

25.4%

4. d3

5,090

35%

42.5%

22.5%

4. Qe2

546

39.6%

36.3%

24.2%

4. d4

344

36.3%

33.4%

30.2%

4. Bxc6

75

29.3%

38.7%

32%

4. c3

8

37.5%

50%

4. Ba4

3

66.7%

33.3%

4. Kf1

Grischuk vs Giri, 2021 1/2-1/2

4.d3 +0.58 (41 ply)

NOTABLE GAMES: (?)
Steinitz vs Chigorin, 1892 (1-0)
Marshall vs Lasker, 1907 (0-1)
A W Fox vs H E Bauer, 1900 (1-0)
Kasparov vs Kramnik, 2001 (1-0)
T L Petrosian vs A Minasian, 2006 (1-0)

DEBUT: H Hesse vs NN, 1803 (1-0)
RECENT: G Oparin vs Aronian, 2018 (1/2-1/2)

GAME COLLECTIONS:
Anti-Berlin System: 4. d3, Part One by Ron
5-rl by classicalwin2
Anti-Berlin System: 4. d3 , Part Two by Ron

OPENING DESIGNATIONS:
C67: Ruy Lopez (7757)
C65: Ruy Lopez, Berlin Defense (6689)
C66: Ruy Lopez (766)
C64: Ruy Lopez, Classical (444)
C48: Four Knights (276)
C49: Four Knights (197)
C77: Ruy Lopez (84)
C80: Ruy Lopez, Open (63)
C82: Ruy Lopez, Open (24)

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