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Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation

56K games from Lichess · Updated January 2026

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4.dxe5
Analyze this line move by move

White expected score · All ratings · All speeds

49.0%

45%55%
Floor48.7%

the worst score you would still get, 90% confident. At best 49.4%.

Measured over 56K games at this level and clock.

Playablewins about as often as it loses at this level

Roughly even — the middlegame decides more than this opening choice does.

Outcomes for White

Draw 6.2 · Score = win + ½ of the draws · 56K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
56K
Best context
57.3% at 0-999 Rapid
Worst context
42.0% at 1800-1999 Rapid
Average game length
35 moves
Games that end decisively
93.8%
Draws
6.2%

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.

Extra Analysis

Deep-dive datasets for this opening

Traps & Chaos

Complexity: 97.5 · Trap factor: +4.2 · 56K games

Where it holds · White score by rating × clock

Green is clearly ahead for White, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It holds about the same all the way up, near 46.2%.

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: 20.6% expected score (7 games)
  • 0-999 rating, Bullet: 49.6% expected score (1,557 games)
  • 0-999 rating, Blitz: 55.4% expected score (4,927 games)
  • 0-999 rating, Rapid: 57.3% expected score (2,686 games)
  • 0-999 rating, Classical: 48.1% expected score (24 games)
  • 1000-1199 rating, UltraBullet: 45.8% expected score (22 games)
  • 1000-1199 rating, Bullet: 51.4% expected score (1,628 games)
  • 1000-1199 rating, Blitz: 54.0% expected score (3,424 games)
  • 1000-1199 rating, Rapid: 54.9% expected score (2,560 games)
  • 1000-1199 rating, Classical: 66.8% expected score (58 games)
  • 1200-1399 rating, UltraBullet: 48.8% expected score (41 games)
  • 1200-1399 rating, Bullet: 48.0% expected score (1,818 games)
  • 1200-1399 rating, Blitz: 49.1% expected score (2,684 games)
  • 1200-1399 rating, Rapid: 53.9% expected score (1,843 games)
  • 1200-1399 rating, Classical: 59.4% expected score (95 games)
  • 1400-1599 rating, UltraBullet: 52.9% expected score (121 games)
  • 1400-1599 rating, Bullet: 48.6% expected score (2,288 games)
  • 1400-1599 rating, Blitz: 46.9% expected score (2,872 games)
  • 1400-1599 rating, Rapid: 50.0% expected score (1,319 games)
  • 1400-1599 rating, Classical: 44.2% expected score (75 games)
  • 1600-1799 rating, UltraBullet: 56.1% expected score (146 games)
  • 1600-1799 rating, Bullet: 47.8% expected score (2,467 games)
  • 1600-1799 rating, Blitz: 44.6% expected score (3,204 games)
  • 1600-1799 rating, Rapid: 46.5% expected score (1,237 games)
  • 1600-1799 rating, Classical: 53.6% expected score (40 games)
  • 1800-1999 rating, UltraBullet: 55.4% expected score (92 games)
  • 1800-1999 rating, Bullet: 45.4% expected score (2,719 games)
  • 1800-1999 rating, Blitz: 42.2% expected score (3,916 games)
  • 1800-1999 rating, Rapid: 42.0% expected score (1,149 games)
  • 1800-1999 rating, Classical: 47.0% expected score (32 games)
  • 2000-2199 rating, UltraBullet: 58.7% expected score (39 games)
  • 2000-2199 rating, Bullet: 46.7% expected score (2,896 games)
  • 2000-2199 rating, Blitz: 44.5% expected score (2,667 games)
  • 2000-2199 rating, Rapid: 44.3% expected score (460 games)
  • 2000-2199 rating, Classical: 46.3% expected score (12 games)
  • 2200-2499 rating, UltraBullet: 40.6% expected score (25 games)
  • 2200-2499 rating, Bullet: 46.4% expected score (3,024 games)
  • 2200-2499 rating, Blitz: 46.4% expected score (1,103 games)
  • 2200-2499 rating, Rapid: 33.9% expected score (85 games)
  • 2500+ rating, UltraBullet: 58.7% expected score (10 games)
  • 2500+ rating, Bullet: 53.3% expected score (559 games)
  • 2500+ rating, Blitz: 48.4% expected score (29 games)
  • 2500+ rating, Rapid: 30.0% expected score (1 games)

Related Openings

Parent
Blackmar-Diemer Gambit
48.0%
Variations (5)
Blackmar-Diemer Gambit: Blackmar Gambit
50.9%
Blackmar-Diemer Gambit: von Popiel Gambit
51.0%
Blackmar-Diemer Gambit: Netherlands Variation
54.1%
Blackmar-Diemer Gambit: Zeller Defense
52.7%
Blackmar-Diemer Gambit: Fritz Attack
46.2%
Analyze Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation scores 49.0% for White — we are 90% confident the real figure is between 48.7% and 49.4% — from 56K 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
56K+ 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: Lemberger Countergambit, Endgame Variation win rate?

Playing the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation, White wins 45.9%, draws 6.2% and loses 47.9%. Counting a draw as half a point, that is an Expected Score of 49.0%. It rests on 56K rated games from Lichess.

At what rating does the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation perform best?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation performs best for White at 0-999, with an Expected Score of 54.9% (9.2K games) and the highest Floor of any rating with enough games to read.

Is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation better in blitz or rapid?

For White, the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation scores higher in Rapid: an Expected Score of 48.5% in Blitz (25K games) against 51.9% in Rapid (11K games).

How sharp is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation has a sharpness score of 93.8 (decisive), meaning 93.8% of games end decisively. Average game length is 35 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 0-999?

At 0-999, White wins 51.5%, draws 6.8% and loses 41.7%. Counting a draw as half a point, that is an Expected Score of 54.9%. It rests on 9.2K Lichess games, which average 30 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 1000-1199?

At 1000-1199, White wins 50.6%, draws 6.3% and loses 43.1%. Counting a draw as half a point, that is an Expected Score of 53.8%. It rests on 7.7K Lichess games, which average 33 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 1200-1399?

At 1200-1399, White wins 47.6%, draws 5.4% and loses 47.0%. Counting a draw as half a point, that is an Expected Score of 50.3%. It rests on 6.5K Lichess games, which average 34 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 1400-1599?

At 1400-1599, White wins 45.4%, draws 5.4% and loses 49.2%. Counting a draw as half a point, that is an Expected Score of 48.1%. It rests on 6.7K Lichess games, which average 34 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 1600-1799?

At 1600-1799, White wins 43.6%, draws 5.5% and loses 50.9%. Counting a draw as half a point, that is an Expected Score of 46.4%. It rests on 7.1K Lichess games, which average 36 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 1800-1999?

At 1800-1999, White wins 40.4%, draws 6.1% and loses 53.5%. Counting a draw as half a point, that is an Expected Score of 43.5%. It rests on 7.9K Lichess games, which average 37 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 2000-2199?

At 2000-2199, White wins 42.2%, draws 6.9% and loses 51.0%. Counting a draw as half a point, that is an Expected Score of 45.6%. It rests on 6.1K Lichess games, which average 37 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 2200-2499?

At 2200-2499, White wins 42.2%, draws 7.8% and loses 50.0%. Counting a draw as half a point, that is an Expected Score of 46.1%. It rests on 4.2K Lichess games, which average 40 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate at 2500+?

At 2500+, White wins 48.9%, draws 8.4% and loses 42.7%. Counting a draw as half a point, that is an Expected Score of 53.1%. It rests on 599 Lichess games, which average 43 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate in UltraBullet?

In UltraBullet, White wins 51.8%, draws 2.5% and loses 45.7%. Counting a draw as half a point, that is an Expected Score of 53.1%. It rests on 503 Lichess games.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate in Bullet?

In Bullet, White wins 45.4%, draws 4.9% and loses 49.8%. Counting a draw as half a point, that is an Expected Score of 47.8%. It rests on 19K Lichess games.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate in Blitz?

In Blitz, White wins 45.1%, draws 6.8% and loses 48.1%. Counting a draw as half a point, that is an Expected Score of 48.5%. It rests on 25K Lichess games.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate in Rapid?

In Rapid, White wins 48.2%, draws 7.4% and loses 44.4%. Counting a draw as half a point, that is an Expected Score of 51.9%. It rests on 11K Lichess games.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation win rate in Classical?

In Classical, White wins 51.1%, draws 6.1% and loses 42.8%. Counting a draw as half a point, that is an Expected Score of 54.2%. It rests on 336 Lichess games.

Is the Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation a good opening?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation is about level. Across all ratings, White wins 45.9% of its games and loses 47.9%. It performs best at 0-999. Your results depend on your rating, time control, and how well you know the typical plans.