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Nimzowitsch Defense: Colorado Countergambit Accepted

156K games from Lichess · Updated January 2026

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Analyze this line move by move

White expected score · All ratings · All speeds

49.3%

45%55%
Floor49.1%

the worst score you would still get, 90% confident. At best 49.5%.

Measured over 156K 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 3.8 · Score = win + ½ of the draws · 156K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
156K
Best context
57.7% at 2200-2499 Rapid
Worst context
47.4% at 1800-1999 Rapid
Average game length
32 moves
Games that end decisively
96.2%
Draws
3.8%

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 · 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 gets better as the rating rises: 48.8% at 0-999, 57.6% 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: 51.8% expected score (651 games)
  • 0-999 rating, Blitz: 54.2% expected score (862 games)
  • 0-999 rating, Rapid: 58.0% expected score (471 games)
  • 0-999 rating, Classical: 50.0% expected score (4 games)
  • 1000-1199 rating, UltraBullet: 50.0% expected score (6 games)
  • 1000-1199 rating, Bullet: 50.2% expected score (1,412 games)
  • 1000-1199 rating, Blitz: 53.1% expected score (1,375 games)
  • 1000-1199 rating, Rapid: 52.3% expected score (517 games)
  • 1000-1199 rating, Classical: 29.0% expected score (8 games)
  • 1200-1399 rating, UltraBullet: 26.2% expected score (9 games)
  • 1200-1399 rating, Bullet: 47.5% expected score (3,110 games)
  • 1200-1399 rating, Blitz: 50.5% expected score (3,047 games)
  • 1200-1399 rating, Rapid: 52.9% expected score (695 games)
  • 1200-1399 rating, Classical: 45.2% expected score (40 games)
  • 1400-1599 rating, UltraBullet: 52.2% expected score (21 games)
  • 1400-1599 rating, Bullet: 48.8% expected score (5,290 games)
  • 1400-1599 rating, Blitz: 50.4% expected score (6,550 games)
  • 1400-1599 rating, Rapid: 50.8% expected score (1,200 games)
  • 1400-1599 rating, Classical: 50.0% expected score (166 games)
  • 1600-1799 rating, UltraBullet: 50.0% expected score (17 games)
  • 1600-1799 rating, Bullet: 48.5% expected score (9,207 games)
  • 1600-1799 rating, Blitz: 48.3% expected score (17,620 games)
  • 1600-1799 rating, Rapid: 47.7% expected score (2,742 games)
  • 1600-1799 rating, Classical: 51.4% expected score (108 games)
  • 1800-1999 rating, UltraBullet: 55.9% expected score (7 games)
  • 1800-1999 rating, Bullet: 48.5% expected score (11,054 games)
  • 1800-1999 rating, Blitz: 48.1% expected score (25,759 games)
  • 1800-1999 rating, Rapid: 47.4% expected score (4,828 games)
  • 1800-1999 rating, Classical: 42.7% expected score (169 games)
  • 2000-2199 rating, UltraBullet: 56.7% expected score (6 games)
  • 2000-2199 rating, Bullet: 50.1% expected score (10,073 games)
  • 2000-2199 rating, Blitz: 49.3% expected score (22,039 games)
  • 2000-2199 rating, Rapid: 50.6% expected score (3,365 games)
  • 2000-2199 rating, Classical: 61.1% expected score (71 games)
  • 2200-2499 rating, UltraBullet: 58.2% expected score (17 games)
  • 2200-2499 rating, Bullet: 50.0% expected score (10,086 games)
  • 2200-2499 rating, Blitz: 51.9% expected score (9,133 games)
  • 2200-2499 rating, Rapid: 57.7% expected score (625 games)
  • 2200-2499 rating, Classical: 70.4% expected score (28 games)
  • 2500+ rating, UltraBullet: 47.0% expected score (15 games)
  • 2500+ rating, Bullet: 50.4% expected score (2,527 games)
  • 2500+ rating, Blitz: 48.7% expected score (1,058 games)
  • 2500+ rating, Rapid: 84.3% expected score (16 games)

Related Openings

Parent
Nimzowitsch Defense
50.3%
Variations (5)
Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation
50.3%
Nimzowitsch Defense: Scandinavian Variation, Advance Variation
50.2%
Nimzowitsch Defense: Declined Variation
49.6%
Nimzowitsch Defense: Scandinavian Variation, Exchange Variation
48.7%
Nimzowitsch Defense: Franco-Nimzowitsch Variation
50.9%
Analyze Nimzowitsch Defense: Colorado Countergambit Accepted PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Nimzowitsch Defense: Colorado Countergambit Accepted scores 49.3% for White — we are 90% confident the real figure is between 49.1% and 49.5% — from 156K 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
156K+ 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 Nimzowitsch Defense: Colorado Countergambit Accepted win rate?

Playing the Nimzowitsch Defense: Colorado Countergambit Accepted, White wins 47.4%, draws 3.8% and loses 48.8%. Counting a draw as half a point, that is an Expected Score of 49.3%. It rests on 156K rated games from Lichess.

At what rating does the Nimzowitsch Defense: Colorado Countergambit Accepted perform best?

The Nimzowitsch Defense: Colorado Countergambit Accepted performs best for White at 0-999, with an Expected Score of 54.3% (2.0K games) and the highest Floor of any rating with enough games to read.

Is the Nimzowitsch Defense: Colorado Countergambit Accepted better in blitz or rapid?

For White, the Nimzowitsch Defense: Colorado Countergambit Accepted scores about the same in both: an Expected Score of 49.2% in Blitz (87K games) against 49.8% in Rapid (14K games).

How sharp is the Nimzowitsch Defense: Colorado Countergambit Accepted?

The Nimzowitsch Defense: Colorado Countergambit Accepted has a sharpness score of 96.2 (very decisive), meaning 96.2% of games end decisively. Average game length is 32 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 0-999?

At 0-999, White wins 52.6%, draws 3.2% and loses 44.1%. Counting a draw as half a point, that is an Expected Score of 54.3%. It rests on 2.0K Lichess games, which average 25 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 1000-1199?

At 1000-1199, White wins 50.4%, draws 2.5% and loses 47.1%. Counting a draw as half a point, that is an Expected Score of 51.7%. It rests on 3.3K Lichess games, which average 26 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 1200-1399?

At 1200-1399, White wins 47.9%, draws 2.9% and loses 49.3%. Counting a draw as half a point, that is an Expected Score of 49.3%. It rests on 6.9K Lichess games, which average 28 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 1400-1599?

At 1400-1599, White wins 48.5%, draws 2.6% and loses 48.9%. Counting a draw as half a point, that is an Expected Score of 49.8%. It rests on 13K Lichess games, which average 29 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 1600-1799?

At 1600-1799, White wins 46.7%, draws 3.2% and loses 50.1%. Counting a draw as half a point, that is an Expected Score of 48.3%. It rests on 30K Lichess games, which average 31 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 1800-1999?

At 1800-1999, White wins 46.1%, draws 4.0% and loses 49.9%. Counting a draw as half a point, that is an Expected Score of 48.1%. It rests on 42K Lichess games, which average 32 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 2000-2199?

At 2000-2199, White wins 47.6%, draws 4.1% and loses 48.3%. Counting a draw as half a point, that is an Expected Score of 49.7%. It rests on 36K Lichess games, which average 33 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 2200-2499?

At 2200-2499, White wins 48.7%, draws 4.9% and loses 46.5%. Counting a draw as half a point, that is an Expected Score of 51.1%. It rests on 20K Lichess games, which average 35 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate at 2500+?

At 2500+, White wins 47.2%, draws 5.7% and loses 47.2%. Counting a draw as half a point, that is an Expected Score of 50.0%. It rests on 3.6K Lichess games, which average 38 moves.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate in Bullet?

In Bullet, White wins 47.8%, draws 2.8% and loses 49.4%. Counting a draw as half a point, that is an Expected Score of 49.2%. It rests on 53K Lichess games.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate in Blitz?

In Blitz, White wins 47.1%, draws 4.2% and loses 48.7%. Counting a draw as half a point, that is an Expected Score of 49.2%. It rests on 87K Lichess games.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate in Rapid?

In Rapid, White wins 47.2%, draws 5.0% and loses 47.7%. Counting a draw as half a point, that is an Expected Score of 49.8%. It rests on 14K Lichess games.

What is the Nimzowitsch Defense: Colorado Countergambit Accepted win rate in Classical?

In Classical, White wins 46.6%, draws 6.5% and loses 46.9%. Counting a draw as half a point, that is an Expected Score of 49.9%. It rests on 594 Lichess games.

Is the Nimzowitsch Defense: Colorado Countergambit Accepted a good opening?

The Nimzowitsch Defense: Colorado Countergambit Accepted is about level. Across all ratings, White wins 47.4% of its games and loses 48.8%. It performs best at 0-999. Your results depend on your rating, time control, and how well you know the typical plans.