Skip to content
TrueEloPlay what wins.
Score a position

Petrov's Defense: Cochrane Gambit

26K games from Lichess · Updated January 2026

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
4.Nxf7
Analyze this line move by move

White expected score · All ratings · All speeds

52.1%

45%60%
Floor51.6%

the worst score you would still get, 90% confident. At best 52.6%.

Measured over 26K games at this level and clock.

Playablewins about as often as it loses at this level

A strong choice for White at this level and clock.

Outcomes for White

Draw 3.4 · Score = win + ½ of the draws · 26K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
26K
Best context
60.3% at 1600-1799 Bullet
Worst context
43.8% at 1400-1599 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.

Extra Analysis

Deep-dive datasets for this opening

Gambit BreakpointWhite

Peak: +20.3% · Breakpoint: 0-999

Time-Control Swing

Max swing: 13.2% · Bullet best · Classical worst

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: 52.1% at 0-999, 49.1% 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: 64.3% expected score (9 games)
  • 0-999 rating, Bullet: 48.8% expected score (659 games)
  • 0-999 rating, Blitz: 49.2% expected score (977 games)
  • 0-999 rating, Rapid: 48.3% expected score (490 games)
  • 0-999 rating, Classical: 50.0% expected score (2 games)
  • 1000-1199 rating, UltraBullet: 50.0% expected score (18 games)
  • 1000-1199 rating, Bullet: 54.6% expected score (796 games)
  • 1000-1199 rating, Blitz: 49.7% expected score (1,345 games)
  • 1000-1199 rating, Rapid: 50.2% expected score (485 games)
  • 1000-1199 rating, Classical: 50.0% expected score (14 games)
  • 1200-1399 rating, UltraBullet: 35.3% expected score (29 games)
  • 1200-1399 rating, Bullet: 51.8% expected score (821 games)
  • 1200-1399 rating, Blitz: 47.6% expected score (1,598 games)
  • 1200-1399 rating, Rapid: 50.4% expected score (678 games)
  • 1200-1399 rating, Classical: 38.9% expected score (21 games)
  • 1400-1599 rating, UltraBullet: 53.9% expected score (50 games)
  • 1400-1599 rating, Bullet: 56.6% expected score (1,020 games)
  • 1400-1599 rating, Blitz: 48.7% expected score (1,814 games)
  • 1400-1599 rating, Rapid: 43.8% expected score (764 games)
  • 1400-1599 rating, Classical: 42.7% expected score (46 games)
  • 1600-1799 rating, UltraBullet: 50.0% expected score (27 games)
  • 1600-1799 rating, Bullet: 60.3% expected score (1,006 games)
  • 1600-1799 rating, Blitz: 50.2% expected score (2,301 games)
  • 1600-1799 rating, Rapid: 45.1% expected score (622 games)
  • 1600-1799 rating, Classical: 36.1% expected score (38 games)
  • 1800-1999 rating, UltraBullet: 53.8% expected score (38 games)
  • 1800-1999 rating, Bullet: 57.1% expected score (1,293 games)
  • 1800-1999 rating, Blitz: 53.9% expected score (2,401 games)
  • 1800-1999 rating, Rapid: 47.9% expected score (632 games)
  • 1800-1999 rating, Classical: 52.7% expected score (36 games)
  • 2000-2199 rating, UltraBullet: 55.1% expected score (18 games)
  • 2000-2199 rating, Bullet: 58.2% expected score (985 games)
  • 2000-2199 rating, Blitz: 52.4% expected score (2,207 games)
  • 2000-2199 rating, Rapid: 55.2% expected score (358 games)
  • 2000-2199 rating, Classical: 42.4% expected score (5 games)
  • 2200-2499 rating, UltraBullet: 64.9% expected score (12 games)
  • 2200-2499 rating, Bullet: 56.7% expected score (979 games)
  • 2200-2499 rating, Blitz: 54.6% expected score (1,080 games)
  • 2200-2499 rating, Rapid: 53.4% expected score (116 games)
  • 2500+ rating, Bullet: 70.9% expected score (197 games)
  • 2500+ rating, Blitz: 54.8% expected score (113 games)
  • 2500+ rating, Rapid: 21.5% expected score (2 games)

Related Openings

Parent
Petrov's Defense
49.1%
Variations (5)
Petrov's Defense: Three Knights Game
50.2%
Petrov's Defense: Italian Variation
50.9%
Petrov's Defense: Stafford Gambit
46.5%
Petrov's Defense: Modern Attack
51.5%
Petrov's Defense: Damiano Variation
58.6%
Continuations (2)
Petrov's Defense: Cochrane Gambit, Bishop Check Line
49.4%
Petrov's Defense: Cochrane Gambit, Center Variation
51.4%
Analyze Petrov's Defense: Cochrane Gambit PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Petrov's Defense: Cochrane Gambit scores 52.1% for White — we are 90% confident the real figure is between 51.6% and 52.6% — from 26K 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
26K+ 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 Petrov's Defense: Cochrane Gambit win rate?

Playing the Petrov's Defense: Cochrane Gambit, White wins 50.4%, draws 3.4% and loses 46.2%. Counting a draw as half a point, that is an Expected Score of 52.1%. It rests on 26K rated games from Lichess.

At what rating does the Petrov's Defense: Cochrane Gambit perform best?

The Petrov's Defense: Cochrane Gambit performs best for White at 2500+, with an Expected Score of 64.7% (312 games) and the highest Floor of any rating with enough games to read.

Is the Petrov's Defense: Cochrane Gambit better in blitz or rapid?

For White, the Petrov's Defense: Cochrane Gambit scores higher in Blitz: an Expected Score of 51.0% in Blitz (14K games) against 48.2% in Rapid (4.1K games).

How sharp is the Petrov's Defense: Cochrane Gambit?

The Petrov's Defense: Cochrane Gambit 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 Petrov's Defense: Cochrane Gambit win rate at 0-999?

At 0-999, White wins 47.0%, draws 3.9% and loses 49.2%. Counting a draw as half a point, that is an Expected Score of 48.9%. It rests on 2.1K Lichess games, which average 24 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 1000-1199?

At 1000-1199, White wins 49.7%, draws 3.1% and loses 47.2%. Counting a draw as half a point, that is an Expected Score of 51.3%. It rests on 2.7K Lichess games, which average 26 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 1200-1399?

At 1200-1399, White wins 47.9%, draws 2.4% and loses 49.7%. Counting a draw as half a point, that is an Expected Score of 49.1%. It rests on 3.1K Lichess games, which average 28 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 1400-1599?

At 1400-1599, White wins 48.1%, draws 3.6% and loses 48.3%. Counting a draw as half a point, that is an Expected Score of 49.9%. It rests on 3.7K Lichess games, which average 29 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 1600-1799?

At 1600-1799, White wins 50.1%, draws 3.3% and loses 46.6%. Counting a draw as half a point, that is an Expected Score of 51.8%. It rests on 4.0K Lichess games, which average 30 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 1800-1999?

At 1800-1999, White wins 52.2%, draws 3.5% and loses 44.3%. Counting a draw as half a point, that is an Expected Score of 54.0%. It rests on 4.4K Lichess games, which average 31 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 2000-2199?

At 2000-2199, White wins 52.3%, draws 4.0% and loses 43.7%. Counting a draw as half a point, that is an Expected Score of 54.3%. It rests on 3.6K Lichess games, which average 32 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 2200-2499?

At 2200-2499, White wins 53.5%, draws 4.0% and loses 42.5%. Counting a draw as half a point, that is an Expected Score of 55.5%. It rests on 2.2K Lichess games, which average 33 moves.

What is the Petrov's Defense: Cochrane Gambit win rate at 2500+?

At 2500+, White wins 62.7%, draws 4.0% and loses 33.3%. Counting a draw as half a point, that is an Expected Score of 64.7%. It rests on 312 Lichess games, which average 34 moves.

What is the Petrov's Defense: Cochrane Gambit win rate in UltraBullet?

In UltraBullet, White wins 50.6%, draws 2.2% and loses 47.2%. Counting a draw as half a point, that is an Expected Score of 51.7%. It rests on 201 Lichess games.

What is the Petrov's Defense: Cochrane Gambit win rate in Bullet?

In Bullet, White wins 55.1%, draws 2.5% and loses 42.4%. Counting a draw as half a point, that is an Expected Score of 56.4%. It rests on 7.8K Lichess games.

What is the Petrov's Defense: Cochrane Gambit win rate in Blitz?

In Blitz, White wins 49.1%, draws 3.7% and loses 47.2%. Counting a draw as half a point, that is an Expected Score of 51.0%. It rests on 14K Lichess games.

What is the Petrov's Defense: Cochrane Gambit win rate in Rapid?

In Rapid, White wins 46.0%, draws 4.4% and loses 49.6%. Counting a draw as half a point, that is an Expected Score of 48.2%. It rests on 4.1K Lichess games.

What is the Petrov's Defense: Cochrane Gambit win rate in Classical?

In Classical, White wins 41.9%, draws 2.8% and loses 55.4%. Counting a draw as half a point, that is an Expected Score of 43.3%. It rests on 162 Lichess games.

Is the Petrov's Defense: Cochrane Gambit a good opening?

The Petrov's Defense: Cochrane Gambit is about level. Across all ratings, White wins 50.4% of its games and loses 46.2%. It performs best at 2500+. Your results depend on your rating, time control, and how well you know the typical plans.