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Blackmar-Diemer Gambit Accepted: Teichmann Defense

503K games from Lichess · Updated January 2026

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Analyze this line move by move

Black expected score · All ratings · All speeds

45.1%

40%55%
Floor45.0%

the worst score you would still get, 90% confident. At best 45.2%.

Measured over 503K 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 3.4 · Score = win + ½ of the draws · 503K games

Rank among the families Black can choose here
not ranked — this is a variation, not a family
Games in this context
503K
Best context
47.9% at 0-999 Rapid
Worst context
36.7% at 2200-2499 Rapid
Average game length
30 moves
Games that end decisively
96.6%
Draws
3.4%

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: 44.3% at 0-999, 34.8% 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: 38.9% expected score (3 games)
  • 0-999 rating, Bullet: 44.1% expected score (2,599 games)
  • 0-999 rating, Blitz: 46.2% expected score (4,809 games)
  • 0-999 rating, Rapid: 47.9% expected score (1,317 games)
  • 1000-1199 rating, UltraBullet: 36.7% expected score (6 games)
  • 1000-1199 rating, Bullet: 43.7% expected score (6,204 games)
  • 1000-1199 rating, Blitz: 45.4% expected score (13,717 games)
  • 1000-1199 rating, Rapid: 45.1% expected score (4,655 games)
  • 1000-1199 rating, Classical: 50.0% expected score (30 games)
  • 1200-1399 rating, UltraBullet: 48.6% expected score (33 games)
  • 1200-1399 rating, Bullet: 45.1% expected score (11,937 games)
  • 1200-1399 rating, Blitz: 45.2% expected score (28,463 games)
  • 1200-1399 rating, Rapid: 44.1% expected score (11,132 games)
  • 1200-1399 rating, Classical: 36.6% expected score (140 games)
  • 1400-1599 rating, UltraBullet: 41.9% expected score (60 games)
  • 1400-1599 rating, Bullet: 46.0% expected score (17,280 games)
  • 1400-1599 rating, Blitz: 45.3% expected score (49,831 games)
  • 1400-1599 rating, Rapid: 45.6% expected score (22,883 games)
  • 1400-1599 rating, Classical: 44.7% expected score (483 games)
  • 1600-1799 rating, UltraBullet: 51.4% expected score (138 games)
  • 1600-1799 rating, Bullet: 44.6% expected score (25,892 games)
  • 1600-1799 rating, Blitz: 45.9% expected score (59,015 games)
  • 1600-1799 rating, Rapid: 45.4% expected score (30,386 games)
  • 1600-1799 rating, Classical: 43.0% expected score (1,180 games)
  • 1800-1999 rating, UltraBullet: 44.5% expected score (71 games)
  • 1800-1999 rating, Bullet: 44.8% expected score (29,800 games)
  • 1800-1999 rating, Blitz: 45.2% expected score (63,613 games)
  • 1800-1999 rating, Rapid: 45.3% expected score (24,376 games)
  • 1800-1999 rating, Classical: 44.3% expected score (1,002 games)
  • 2000-2199 rating, UltraBullet: 40.8% expected score (31 games)
  • 2000-2199 rating, Bullet: 44.9% expected score (25,593 games)
  • 2000-2199 rating, Blitz: 44.5% expected score (30,470 games)
  • 2000-2199 rating, Rapid: 45.0% expected score (8,637 games)
  • 2000-2199 rating, Classical: 42.0% expected score (246 games)
  • 2200-2499 rating, UltraBullet: 43.6% expected score (14 games)
  • 2200-2499 rating, Bullet: 44.8% expected score (16,537 games)
  • 2200-2499 rating, Blitz: 43.2% expected score (6,947 games)
  • 2200-2499 rating, Rapid: 36.7% expected score (1,232 games)
  • 2200-2499 rating, Classical: 42.6% expected score (12 games)
  • 2500+ rating, UltraBullet: 30.0% expected score (1 games)
  • 2500+ rating, Bullet: 44.9% expected score (2,254 games)
  • 2500+ rating, Blitz: 35.1% expected score (293 games)
  • 2500+ rating, Rapid: 29.0% expected score (8 games)

Related Openings

Parent
Blackmar-Diemer Gambit Accepted
50.9%
Variations (5)
Blackmar-Diemer Gambit Accepted: Ryder Gambit
54.2%
Blackmar-Diemer Gambit Accepted: Euwe Defense
58.8%
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 (3)
Blackmar-Diemer Gambit Accepted: Teichmann Defense, Classical Variation
56.4%
Blackmar-Diemer Gambit Accepted: Teichmann Defense, Ciesielski Variation
61.2%
Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack
57.0%
Analyze Blackmar-Diemer Gambit Accepted: Teichmann Defense PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Blackmar-Diemer Gambit Accepted: Teichmann Defense scores 45.1% for Black — we are 90% confident the real figure is between 45.0% and 45.2% — from 503K 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
503K+ 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: Teichmann Defense win rate?

Playing the Blackmar-Diemer Gambit Accepted: Teichmann Defense, Black wins 43.4%, draws 3.4% and loses 53.2%. Counting a draw as half a point, that is an Expected Score of 45.1%. It rests on 503K rated games from Lichess.

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

The Blackmar-Diemer Gambit Accepted: Teichmann Defense performs best for Black at 1400-1599, with an Expected Score of 45.5% (91K games) and the highest Floor of any rating with enough games to read.

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

For Black, the Blackmar-Diemer Gambit Accepted: Teichmann Defense scores about the same in both: an Expected Score of 45.2% in Blitz (257K games) against 45.2% in Rapid (105K games).

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

The Blackmar-Diemer Gambit Accepted: Teichmann Defense has a sharpness score of 96.6 (very decisive), meaning 96.6% of games end decisively. Average game length is 30 moves.

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

At 0-999, Black wins 44.3%, draws 2.9% and loses 52.8%. Counting a draw as half a point, that is an Expected Score of 45.8%. It rests on 8.7K Lichess games, which average 25 moves.

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

At 1000-1199, Black wins 43.5%, draws 2.8% and loses 53.7%. Counting a draw as half a point, that is an Expected Score of 44.9%. It rests on 25K Lichess games, which average 27 moves.

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

At 1200-1399, Black wins 43.5%, draws 2.8% and loses 53.7%. Counting a draw as half a point, that is an Expected Score of 44.9%. It rests on 52K Lichess games, which average 28 moves.

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

At 1400-1599, Black wins 44.0%, draws 2.9% and loses 53.1%. Counting a draw as half a point, that is an Expected Score of 45.5%. It rests on 91K Lichess games, which average 29 moves.

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

At 1600-1799, Black wins 43.8%, draws 3.2% and loses 52.9%. Counting a draw as half a point, that is an Expected Score of 45.5%. It rests on 117K Lichess games, which average 30 moves.

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

At 1800-1999, Black wins 43.2%, draws 3.8% and loses 53.0%. Counting a draw as half a point, that is an Expected Score of 45.1%. It rests on 119K Lichess games, which average 32 moves.

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

At 2000-2199, Black wins 42.6%, draws 4.2% and loses 53.2%. Counting a draw as half a point, that is an Expected Score of 44.7%. It rests on 65K Lichess games, which average 33 moves.

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

At 2200-2499, Black wins 41.8%, draws 4.3% and loses 53.9%. Counting a draw as half a point, that is an Expected Score of 44.0%. It rests on 25K Lichess games, which average 34 moves.

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

At 2500+, Black wins 41.4%, draws 4.5% and loses 54.1%. Counting a draw as half a point, that is an Expected Score of 43.7%. It rests on 2.6K Lichess games, which average 37 moves.

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

In UltraBullet, Black wins 45.6%, draws 1.3% and loses 53.1%. Counting a draw as half a point, that is an Expected Score of 46.3%. It rests on 357 Lichess games.

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

In Bullet, Black wins 43.5%, draws 2.7% and loses 53.8%. Counting a draw as half a point, that is an Expected Score of 44.9%. It rests on 138K Lichess games.

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

In Blitz, Black wins 43.4%, draws 3.6% and loses 53.0%. Counting a draw as half a point, that is an Expected Score of 45.2%. It rests on 257K Lichess games.

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

In Rapid, Black wins 43.2%, draws 4.0% and loses 52.9%. Counting a draw as half a point, that is an Expected Score of 45.2%. It rests on 105K Lichess games.

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

In Classical, Black wins 41.0%, draws 4.7% and loses 54.3%. Counting a draw as half a point, that is an Expected Score of 43.4%. It rests on 3.1K Lichess games.

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

The Blackmar-Diemer Gambit Accepted: Teichmann Defense is hard work for Black — it favours White. Across all ratings, Black wins 43.4% of its games and loses 53.2%. It performs best at 1400-1599. Your results depend on your rating, time control, and how well you know the typical plans.