Bishop's Opening: Krejcik Gambit

Moves

White scores

44.6%

Loses more

Everyone

Loses moreEvenWins more

43.5% won2.2% drawn54.3% lost

Every level and clock · 110 games, few

Analyze this line move by move

5.b4

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Your levelnot setDrag to yours ↔

<100010001200140016001800200022002500+

Win rate by rating

White's score at each rating.

Rating	Score against even	Score	Won	Games
		–		16
		–		9
		–		17
		–		17
		–		28
		–		17
		–		6
		–
		–

Every clock · –: too few to score. Tap a row to set your level.

Is the Krejcik Gambit good?

Not for White, across every level and clock.

Floor 37.0 is the worst score you would still get, 90% confident.

Where it wins · rating × clock

<100010001200140016001800200022002500+Every levelUltraBulletBulletBlitzRapidClassical

–: too few to score. Tap a cell to set your level and clock.

Average game length

0204060

This line 30All openings 34

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Analyze Bishop's Opening: Krejcik Gambit PositionsSee what each move is worth at your rating, move by move

Methodology

Across every level and clock, the Bishop's Opening: Krejcik Gambit scores 44.6% for White, with a range running from 37.0% to 52.4% around that figure, from 110 rated Lichess games. Win rate, draw rate and loss rate come from games played September 2023 to August 2026.

How the figures are made

Whose games these are: 110 rated games played on Lichess (2023-09 to 2026-08). The games are Lichess’s and free for anyone to use. What is ours is the reading of them. Last rebuilt September 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.
What the Floor and Edge at worst are: The Floor is the worst score you would still get, 90% confident: the low end of a figure’s range, not its average. Edge at worst is how far wins run ahead of losses, 90% confident, so above zero, that side wins more than it loses even on a bad day. Each is stated for the rating and clock shown, over the games that reached the position. They are on different scales: a score sits at 50 when the sides are level, an edge at zero.
How much we need before we say anything: An opening page needs 100 games. A figure on it needs 100 games at its rating and clock: short of that the answer reads a wider scope and says so, a table row shows only its count, and a map cell shows a dash. Under 1.0K games a figure is drawn faint, and never leads a list or counts as the best or worst place the line wins. The chaos and trap lists need 500 games overall and 250 games at one rating or clock.