ECO family guide

Center Game — all variations and ECO codes

18 named lines across 3 ECO codes (C20–C22). Source: the CC0-licensed lichess.org opening database.

The main line

Position after 1.e4 e5 2.d4 (C20). Open this line on Lichess → · Center Game on Lichess

How the main line scores at your rating

Real Lichess win rates for 1.e4 e5 2.d4, playing as white — the family's other variations are not separately tracked for win rate yet, main line only.

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Win/draw/loss rate by rating band
Rating band	Games	White / draw / Black	Score for white
1400-1600	17,808,420	51.6% / 3.6% / 44.8%	53.4%
1600-1800	15,412,742	53.1% / 3.6% / 43.4%	54.8%
1800-2000	10,549,799	53.6% / 3.9% / 42.5%	55.5%
2000+	5,216,904	52.0% / 4.8% / 43.2%	54.4%

All 18 named variations

Every named line in the Center Game family, from the CC0-licensed ECO classification — not separately tracked for win rate, but every ECO code and move sequence is real, sourced data.

C20Center Game (main line) — 1.e4 e5 2.d4
C21Center Game (main line) — 1.e4 e5 2.d4 exd4 3.Qxd4
C21Halasz-McDonnell Gambit — 1.e4 e5 2.d4 exd4 3.f4
- C21Crocodile Variation — 1.e4 e5 2.d4 exd4 3.f4 Bc5 4.Nf3 Nc6 5.c3
C21Kieseritzky Variation — 1.e4 e5 2.d4 exd4 3.Nf3
C21Kieseritzky Variation — 1.e4 e5 2.d4 exd4 3.Nf3 c5
C21Kieseritzky Variation — 1.e4 e5 2.d4 exd4 3.Nf3 c5 4.Bc4
C21Lanc-Arnold Gambit — 1.e4 e5 2.d4 exd4 3.Nf3 Bc5 4.c3
- C21Schippler Gambit — 1.e4 e5 2.d4 exd4 3.Nf3 Bc5 4.c3 dxc3 5.Bc4
C21Ross Gambit — 1.e4 e5 2.d4 exd4 3.Bd3
C21von der Lasa Gambit — 1.e4 e5 2.d4 exd4 3.Bc4
C22Berger Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Nf6
C22Charousek Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Bb4+ 5.c3 Be7
C22Hall Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qc4
C22Kupreichik Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Nf6 5.Nc3 Bb4 6.Bd2 O-O 7.O-O-O Re8 8.Bc4 d6 9.Nh3
C22Normal Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6
C22Paulsen Attack Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3
C22l'Hermet Variation — 1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 f5