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Center Game Accepted

C21For BlackAggressiveLow theory

1. e4 e5 2. d4 exd4

A line for Black. Every figure below is computed separately for each rating band, and every one carries its own sample size.

Win rate, Black
50.0%47.8%45.5%43.4%
Band 600, n = 42,251Band 1000, n = 190,895Band 1400, n = 132,349Band 1800, n = 207,511
Blunder rate
14.3%46.2%32.1%43.8%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
ACCD
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
1.0%1.3%1.2%1.0%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60045.7%4.3%50.0%14.3%ply 4.042,251A
100048.8%3.5%47.8%46.2%ply 4.0190,895C
140051.2%3.4%45.5%32.1%ply 4.0132,349C
180053.0%3.6%43.4%43.8%ply 4.0207,511D

Results by band

What it actually does, band by band.

All four bands are on the page. The one matching your rating is marked. Nothing here is averaged across bands.

600Your bandA at 600Blunder rate 14.3%, band median 44.6%

At 600, the Center Game Accepted scores 50.0% for Black across 42,251 games. That is comfortably above average at this level. Games in this line leave known theory around move 2 on average, and 14.3% include an early material blunder (7 games at 600).

1000Your bandC at 1000Blunder rate 46.2%, band median 42.9%

At 1000, the Center Game Accepted scores 47.8% for Black across 190,895 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 46.2% include an early material blunder (26 games at 1000).

1400Your bandC at 1400Blunder rate 32.1%, band median 40.0%

At 1400, the Center Game Accepted scores 45.5% for Black across 132,349 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 32.1% include an early material blunder (28 games at 1400).

1800Your bandD at 1800Blunder rate 43.8%, band median 36.4%

At 1800, the Center Game Accepted scores 43.4% for Black across 207,511 games. Most openings score better than this at this level. Games in this line leave known theory around move 2 on average, and 43.8% include an early material blunder (48 games at 1800).

Variations

Where the line goes next.

The lines that continue the Center Game Accepted, most played first at your band. Switch the band in the header and both the figures and the order follow.

  • BCCBC21

    Center Game

    1. e4 e5 2. d4 exd4 3. Qxd4

    0.7% of games at 600, n = 28,3870.7% of games at 1000, n = 105,2490.5% of games at 1400, n = 50,1890.2% of games at 1800, n = 50,468

  • AAAAC21

    Danish Gambit

    1. e4 e5 2. d4 exd4 3. c3

    0.1% of games at 600, n = 5,4100.3% of games at 1000, n = 44,2950.4% of games at 1400, n = 44,8030.4% of games at 1800, n = 88,052

  • AABAC21

    Center Game: Kieseritzky Variation

    1. e4 e5 2. d4 exd4 3. Nf3

    0.1% of games at 600, n = 4,4650.2% of games at 1000, n = 28,1560.2% of games at 1400, n = 24,8890.2% of games at 1800, n = 44,106

Questions

Common questions about this page.

At 600, the Center Game Accepted scores 50.0% for Black across 42,251 games. That is comfortably above average at this level. Games in this line leave known theory around move 2 on average, and 14.3% include an early material blunder (7 games at 600).

At 1000, the Center Game Accepted scores 47.8% for Black across 190,895 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 46.2% include an early material blunder (26 games at 1000).

The Center Game Accepted (C21) is a line for Black. The main line runs 1. e4 e5 2. d4 exd4.