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Danish Gambit AcceptedCopenhagen Defense

C21For BlackAggressiveLow theory

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+

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
38.6%37.7%37.7%40.3%
Band 600, n = 215Band 1000, n = 2,167Band 1400, n = 2,778Band 1800, n = 7,069
Blunder rate
pendingpendingpendingpending
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
-DDD
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.0%0.0%0.0%0.0%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60055.8%5.6%38.6%--215-
100059.8%2.5%37.7%--2,167D
140059.5%2.8%37.7%--2,778D
180057.1%2.7%40.3%--7,069D

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 band

At 600, the Danish Gambit Accepted: Copenhagen Defense scores 38.6% for Black across 215 games. The sample at 600 is too small to grade honestly.

1000Your bandD at 1000

At 1000, the Danish Gambit Accepted: Copenhagen Defense scores 37.7% for Black across 2,167 games. Most openings score better than this at this level.

1400Your bandD at 1400

At 1400, the Danish Gambit Accepted: Copenhagen Defense scores 37.7% for Black across 2,778 games. Most openings score better than this at this level.

1800Your bandD at 1800

At 1800, the Danish Gambit Accepted: Copenhagen Defense scores 40.3% for Black across 7,069 games. Most openings score better than this at this level.

Questions

Common questions about this page.

At 600, the Danish Gambit Accepted: Copenhagen Defense scores 38.6% for Black across 215 games. The sample at 600 is too small to grade honestly.

At 1000, the Danish Gambit Accepted: Copenhagen Defense scores 37.7% for Black across 2,167 games. Most openings score better than this at this level.

The Danish Gambit Accepted: Copenhagen Defense (C21) is a line for Black. The main line runs 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+.