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Blackmar-Diemer Gambit Accepted: Euwe Defense

486K games from Lichess · Updated January 2026

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Analyze this line move by move

Black expected score · All ratings · All speeds

39.8%

35%55%
Floor39.7%

the worst score you would still get, 90% confident. At best 39.9%.

Measured over 486K games at this level and clock.

Tough Sellloses more often than it wins at this level

Black comes out behind here — there are better weapons in the list.

Outcomes for Black

Draw 2.8 · Score = win + ½ of the draws · 486K games

Rank among the families Black can choose here
not ranked — this is a variation, not a family
Games in this context
486K
Best context
53.0% at 0-999 Rapid
Worst context
38.6% at 1800-1999 Blitz
Average game length
28 moves
Games that end decisively
97.2%
Draws
2.8%

Best and worst are the strongest and weakest squares with at least 500 games behind them. The table further down shows every square, including thinner ones.

Where it holds · Black score by rating × clock

Green is clearly ahead for Black, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It falls away as the rating rises: 43.7% at 0-999, 30.5% at 2500+.

RatingUBBulleBlitzRapidClass
0-999
1000-1199
1200-1399
1400-1599
1600-1799
1800-1999
2000-2199
2200-2499
2500+—

Expected score matrix by rating bracket and time control

  • 0-999 rating, UltraBullet: 30.0% expected score (1 games)
  • 0-999 rating, Bullet: 45.2% expected score (2,209 games)
  • 0-999 rating, Blitz: 47.9% expected score (2,968 games)
  • 0-999 rating, Rapid: 53.0% expected score (705 games)
  • 0-999 rating, Classical: 42.4% expected score (5 games)
  • 1000-1199 rating, UltraBullet: 20.3% expected score (17 games)
  • 1000-1199 rating, Bullet: 41.6% expected score (6,102 games)
  • 1000-1199 rating, Blitz: 43.4% expected score (9,897 games)
  • 1000-1199 rating, Rapid: 46.6% expected score (2,701 games)
  • 1000-1199 rating, Classical: 63.8% expected score (13 games)
  • 1200-1399 rating, UltraBullet: 47.7% expected score (86 games)
  • 1200-1399 rating, Bullet: 40.5% expected score (13,378 games)
  • 1200-1399 rating, Blitz: 40.5% expected score (22,473 games)
  • 1200-1399 rating, Rapid: 42.8% expected score (7,135 games)
  • 1200-1399 rating, Classical: 37.6% expected score (79 games)
  • 1400-1599 rating, UltraBullet: 39.5% expected score (179 games)
  • 1400-1599 rating, Bullet: 38.9% expected score (20,972 games)
  • 1400-1599 rating, Blitz: 39.3% expected score (43,757 games)
  • 1400-1599 rating, Rapid: 40.2% expected score (15,355 games)
  • 1400-1599 rating, Classical: 43.1% expected score (311 games)
  • 1600-1799 rating, UltraBullet: 43.8% expected score (402 games)
  • 1600-1799 rating, Bullet: 39.2% expected score (31,541 games)
  • 1600-1799 rating, Blitz: 38.9% expected score (56,869 games)
  • 1600-1799 rating, Rapid: 40.5% expected score (22,854 games)
  • 1600-1799 rating, Classical: 42.3% expected score (843 games)
  • 1800-1999 rating, UltraBullet: 42.8% expected score (267 games)
  • 1800-1999 rating, Bullet: 39.1% expected score (36,927 games)
  • 1800-1999 rating, Blitz: 38.6% expected score (63,666 games)
  • 1800-1999 rating, Rapid: 40.4% expected score (21,102 games)
  • 1800-1999 rating, Classical: 44.2% expected score (840 games)
  • 2000-2199 rating, UltraBullet: 40.8% expected score (112 games)
  • 2000-2199 rating, Bullet: 40.0% expected score (30,952 games)
  • 2000-2199 rating, Blitz: 39.6% expected score (31,784 games)
  • 2000-2199 rating, Rapid: 40.8% expected score (7,792 games)
  • 2000-2199 rating, Classical: 39.0% expected score (265 games)
  • 2200-2499 rating, UltraBullet: 48.3% expected score (56 games)
  • 2200-2499 rating, Bullet: 40.3% expected score (20,186 games)
  • 2200-2499 rating, Blitz: 40.5% expected score (6,839 games)
  • 2200-2499 rating, Rapid: 38.6% expected score (1,322 games)
  • 2200-2499 rating, Classical: 41.3% expected score (10 games)
  • 2500+ rating, UltraBullet: 31.9% expected score (4 games)
  • 2500+ rating, Bullet: 42.1% expected score (3,081 games)
  • 2500+ rating, Blitz: 38.1% expected score (280 games)
  • 2500+ rating, Rapid: 10.0% expected score (6 games)

Related Openings

Parent
Blackmar-Diemer Gambit Accepted
50.9%
Variations (5)
Blackmar-Diemer Gambit Accepted: Ryder Gambit
54.2%
Blackmar-Diemer Gambit Accepted: Teichmann Defense
53.2%
Blackmar-Diemer Gambit Accepted: Ziegler Defense
55.2%
Blackmar-Diemer Gambit Accepted: Pietrowsky Defense
53.4%
Blackmar-Diemer Gambit Accepted: Gunderam Defense
46.8%
Continuations (1)
Blackmar-Diemer Gambit Accepted: Euwe Defense, Zilbermints Gambit
53.5%
Analyze Blackmar-Diemer Gambit Accepted: Euwe Defense PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Blackmar-Diemer Gambit Accepted: Euwe Defense scores 39.8% for Black — we are 90% confident the real figure is between 39.7% and 39.9% — from 486K Lichess games. Win rate, draw rate and loss rate come from games played December 2023 to November 2025.

How the figures are made
Whose games these are
486K+ rated games played on Lichess (2023-12 to 2025-11). The games are Lichess’s and free for anyone to use. What is ours is the reading of them. Last rebuilt January 2026.
Which games we count
  • Rated games only — nothing casual.
  • Both players within 200 rating points of each other. A mismatch tells you about the gap, not about the opening.
  • At least 2 moves played.
  • A game is filed under White’s rating.
Why every number comes with a range
A number off a few hundred games is a guess. The same number off millions is a fact. The range is what tells them apart, and it is what the lists rank on — so an opening cannot reach the top on a lucky run of forty games. The more games behind a figure, the narrower its range.
How much we need before we say anything
An opening page needs 100 games. A gambit needs 50 games at a rating before we will say whether it pays there. The chaos and trap lists need 500 games overall and 250 games at one rating or clock.

Frequently Asked Questions

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate?

Playing the Blackmar-Diemer Gambit Accepted: Euwe Defense, Black wins 38.4%, draws 2.8% and loses 58.8%. Counting a draw as half a point, that is an Expected Score of 39.8%. It rests on 486K rated games from Lichess.

At what rating does the Blackmar-Diemer Gambit Accepted: Euwe Defense perform best?

The Blackmar-Diemer Gambit Accepted: Euwe Defense performs best for Black at 0-999, with an Expected Score of 47.5% (5.9K games) and the highest Floor of any rating with enough games to read.

Is the Blackmar-Diemer Gambit Accepted: Euwe Defense better in blitz or rapid?

For Black, the Blackmar-Diemer Gambit Accepted: Euwe Defense scores higher in Rapid: an Expected Score of 39.5% in Blitz (239K games) against 40.9% in Rapid (79K games).

How sharp is the Blackmar-Diemer Gambit Accepted: Euwe Defense?

The Blackmar-Diemer Gambit Accepted: Euwe Defense has a sharpness score of 97.2 (very decisive), meaning 97.2% of games end decisively. Average game length is 28 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 0-999?

At 0-999, Black wins 46.2%, draws 2.5% and loses 51.3%. Counting a draw as half a point, that is an Expected Score of 47.5%. It rests on 5.9K Lichess games, which average 25 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 1000-1199?

At 1000-1199, Black wins 42.1%, draws 2.2% and loses 55.6%. Counting a draw as half a point, that is an Expected Score of 43.3%. It rests on 19K Lichess games, which average 26 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 1200-1399?

At 1200-1399, Black wins 39.7%, draws 2.2% and loses 58.0%. Counting a draw as half a point, that is an Expected Score of 40.9%. It rests on 43K Lichess games, which average 26 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 1400-1599?

At 1400-1599, Black wins 38.2%, draws 2.3% and loses 59.5%. Counting a draw as half a point, that is an Expected Score of 39.4%. It rests on 81K Lichess games, which average 27 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 1600-1799?

At 1600-1799, Black wins 37.9%, draws 2.7% and loses 59.4%. Counting a draw as half a point, that is an Expected Score of 39.3%. It rests on 113K Lichess games, which average 28 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 1800-1999?

At 1800-1999, Black wins 37.6%, draws 3.0% and loses 59.4%. Counting a draw as half a point, that is an Expected Score of 39.1%. It rests on 123K Lichess games, which average 29 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 2000-2199?

At 2000-2199, Black wins 38.2%, draws 3.4% and loses 58.4%. Counting a draw as half a point, that is an Expected Score of 39.9%. It rests on 71K Lichess games, which average 31 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 2200-2499?

At 2200-2499, Black wins 38.4%, draws 3.8% and loses 57.8%. Counting a draw as half a point, that is an Expected Score of 40.3%. It rests on 28K Lichess games, which average 32 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate at 2500+?

At 2500+, Black wins 39.6%, draws 4.1% and loses 56.3%. Counting a draw as half a point, that is an Expected Score of 41.7%. It rests on 3.4K Lichess games, which average 36 moves.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate in UltraBullet?

In UltraBullet, Black wins 41.9%, draws 1.3% and loses 56.8%. Counting a draw as half a point, that is an Expected Score of 42.6%. It rests on 1.1K Lichess games.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate in Bullet?

In Bullet, Black wins 38.6%, draws 2.3% and loses 59.1%. Counting a draw as half a point, that is an Expected Score of 39.8%. It rests on 165K Lichess games.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate in Blitz?

In Blitz, Black wins 38.0%, draws 3.0% and loses 59.0%. Counting a draw as half a point, that is an Expected Score of 39.5%. It rests on 239K Lichess games.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate in Rapid?

In Rapid, Black wins 39.2%, draws 3.4% and loses 57.4%. Counting a draw as half a point, that is an Expected Score of 40.9%. It rests on 79K Lichess games.

What is the Blackmar-Diemer Gambit Accepted: Euwe Defense win rate in Classical?

In Classical, Black wins 40.3%, draws 4.6% and loses 55.1%. Counting a draw as half a point, that is an Expected Score of 42.6%. It rests on 2.4K Lichess games.

Is the Blackmar-Diemer Gambit Accepted: Euwe Defense a good opening?

The Blackmar-Diemer Gambit Accepted: Euwe Defense is hard work for Black — it favours White. Across all ratings, Black wins 38.4% of its games and loses 58.8%. It performs best at 0-999. Your results depend on your rating, time control, and how well you know the typical plans.