Skip to content
TrueEloPlay what wins.
Score a position

Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit

53K games from Lichess · Updated January 2026

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
4.Nxe4
Analyze this line move by move

White expected score · All ratings · All speeds

50.2%

45%55%
Floor49.8%

the worst score you would still get, 90% confident. At best 50.5%.

Measured over 53K 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 4.1 · Score = win + ½ of the draws · 53K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
53K
Best context
53.7% at 2000-2199 Blitz
Worst context
47.3% at 1000-1199 Bullet
Average game length
31 moves
Games that end decisively
95.9%
Draws
4.1%

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

Gambit BreakpointWhite

Peak: +1.7% · Breakpoint: 0-999

Traps & Chaos

Complexity: 95.8 · Trap factor: +9.8 · 53K 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 falls away as the rating rises: 50.9% at 0-999, 48.4% 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: 46.0% expected score (11 games)
  • 0-999 rating, Bullet: 49.9% expected score (1,317 games)
  • 0-999 rating, Blitz: 50.0% expected score (3,749 games)
  • 0-999 rating, Rapid: 51.5% expected score (2,086 games)
  • 0-999 rating, Classical: 57.3% expected score (19 games)
  • 1000-1199 rating, UltraBullet: 50.0% expected score (22 games)
  • 1000-1199 rating, Bullet: 47.3% expected score (1,485 games)
  • 1000-1199 rating, Blitz: 49.8% expected score (2,770 games)
  • 1000-1199 rating, Rapid: 50.3% expected score (2,041 games)
  • 1000-1199 rating, Classical: 46.1% expected score (50 games)
  • 1200-1399 rating, UltraBullet: 50.7% expected score (77 games)
  • 1200-1399 rating, Bullet: 48.2% expected score (1,888 games)
  • 1200-1399 rating, Blitz: 49.8% expected score (2,591 games)
  • 1200-1399 rating, Rapid: 51.5% expected score (1,809 games)
  • 1200-1399 rating, Classical: 50.5% expected score (105 games)
  • 1400-1599 rating, UltraBullet: 47.6% expected score (143 games)
  • 1400-1599 rating, Bullet: 47.6% expected score (2,377 games)
  • 1400-1599 rating, Blitz: 50.3% expected score (3,316 games)
  • 1400-1599 rating, Rapid: 50.1% expected score (1,512 games)
  • 1400-1599 rating, Classical: 54.3% expected score (80 games)
  • 1600-1799 rating, UltraBullet: 44.3% expected score (164 games)
  • 1600-1799 rating, Bullet: 49.0% expected score (3,080 games)
  • 1600-1799 rating, Blitz: 52.1% expected score (3,402 games)
  • 1600-1799 rating, Rapid: 50.7% expected score (1,415 games)
  • 1600-1799 rating, Classical: 61.4% expected score (38 games)
  • 1800-1999 rating, UltraBullet: 45.5% expected score (98 games)
  • 1800-1999 rating, Bullet: 47.6% expected score (3,807 games)
  • 1800-1999 rating, Blitz: 50.8% expected score (2,919 games)
  • 1800-1999 rating, Rapid: 49.8% expected score (975 games)
  • 1800-1999 rating, Classical: 60.9% expected score (26 games)
  • 2000-2199 rating, UltraBullet: 58.9% expected score (21 games)
  • 2000-2199 rating, Bullet: 51.4% expected score (4,148 games)
  • 2000-2199 rating, Blitz: 53.7% expected score (1,329 games)
  • 2000-2199 rating, Rapid: 52.3% expected score (259 games)
  • 2000-2199 rating, Classical: 63.4% expected score (6 games)
  • 2200-2499 rating, UltraBullet: 36.2% expected score (13 games)
  • 2200-2499 rating, Bullet: 50.9% expected score (2,906 games)
  • 2200-2499 rating, Blitz: 57.2% expected score (416 games)
  • 2200-2499 rating, Rapid: 54.8% expected score (30 games)
  • 2200-2499 rating, Classical: 70.0% expected score (1 games)
  • 2500+ rating, UltraBullet: 35.7% expected score (2 games)
  • 2500+ rating, Bullet: 53.6% expected score (458 games)
  • 2500+ rating, Blitz: 74.2% expected score (13 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, Lange Gambit PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit scores 50.2% for White — we are 90% confident the real figure is between 49.8% and 50.5% — from 53K 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
53K+ 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, Lange Gambit win rate?

Playing the Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit, White wins 48.1%, draws 4.1% and loses 47.8%. Counting a draw as half a point, that is an Expected Score of 50.2%. It rests on 53K rated games from Lichess.

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

The Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit performs best for White at 2000-2199, with an Expected Score of 52.0% (5.8K games) and the highest Floor of any rating with enough games to read.

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

For White, the Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit scores about the same in both: an Expected Score of 50.9% in Blitz (21K games) against 50.8% in Rapid (10K games).

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

The Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit has a sharpness score of 95.9 (very decisive), meaning 95.9% of games end decisively. Average game length is 31 moves.

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

At 0-999, White wins 48.1%, draws 4.6% and loses 47.3%. Counting a draw as half a point, that is an Expected Score of 50.4%. It rests on 7.2K Lichess games, which average 27 moves.

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

At 1000-1199, White wins 47.2%, draws 4.2% and loses 48.6%. Counting a draw as half a point, that is an Expected Score of 49.3%. It rests on 6.4K Lichess games, which average 28 moves.

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

At 1200-1399, White wins 48.1%, draws 3.5% and loses 48.4%. Counting a draw as half a point, that is an Expected Score of 49.9%. It rests on 6.5K Lichess games, which average 29 moves.

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

At 1400-1599, White wins 47.6%, draws 3.5% and loses 48.9%. Counting a draw as half a point, that is an Expected Score of 49.4%. It rests on 7.4K Lichess games, which average 30 moves.

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

At 1600-1799, White wins 48.5%, draws 4.1% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 50.6%. It rests on 8.1K Lichess games, which average 31 moves.

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

At 1800-1999, White wins 46.8%, draws 4.5% and loses 48.7%. Counting a draw as half a point, that is an Expected Score of 49.1%. It rests on 7.8K Lichess games, which average 33 moves.

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

At 2000-2199, White wins 49.8%, draws 4.2% and loses 45.9%. Counting a draw as half a point, that is an Expected Score of 52.0%. It rests on 5.8K Lichess games, which average 34 moves.

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

At 2200-2499, White wins 49.3%, draws 4.7% and loses 46.0%. Counting a draw as half a point, that is an Expected Score of 51.7%. It rests on 3.4K Lichess games, which average 35 moves.

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

At 2500+, White wins 51.0%, draws 6.0% and loses 43.0%. Counting a draw as half a point, that is an Expected Score of 54.0%. It rests on 474 Lichess games, which average 37 moves.

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

In UltraBullet, White wins 46.1%, draws 1.4% and loses 52.6%. Counting a draw as half a point, that is an Expected Score of 46.8%. It rests on 551 Lichess games.

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

In Bullet, White wins 47.5%, draws 3.4% and loses 49.0%. Counting a draw as half a point, that is an Expected Score of 49.3%. It rests on 21K Lichess games.

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

In Blitz, White wins 48.6%, draws 4.5% and loses 46.9%. Counting a draw as half a point, that is an Expected Score of 50.9%. It rests on 21K Lichess games.

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

In Rapid, White wins 48.3%, draws 5.0% and loses 46.7%. Counting a draw as half a point, that is an Expected Score of 50.8%. It rests on 10K Lichess games.

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

In Classical, White wins 50.1%, draws 7.5% and loses 42.4%. Counting a draw as half a point, that is an Expected Score of 53.9%. It rests on 325 Lichess games.

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

The Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit is about level. Across all ratings, White wins 48.1% of its games and loses 47.8%. It performs best at 2000-2199. Your results depend on your rating, time control, and how well you know the typical plans.