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Slav DefenseThree Knights Variation

D15For BlackSolid

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3

A line for Black. Every figure below is computed separately for each rating band, and every one carries its own sample size.

Win rate, Black
45.1%45.1%45.0%43.8%
Band 600, n = 1,171Band 1000, n = 11,906Band 1400, n = 15,996Band 1800, n = 69,029
Blunder rate
0.0%0.0%66.7%50.0%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCDD
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.0%0.1%0.1%0.3%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60051.6%3.3%45.1%0.0%ply 7.01,171C
100051.2%3.6%45.1%0.0%ply 7.011,906C
140050.7%4.2%45.0%66.7%ply 7.015,996D
180051.1%5.2%43.8%50.0%ply 7.069,029D

Results by band

What it actually does, band by band.

All four bands are on the page. The one matching your rating is marked. Nothing here is averaged across bands.

600Your bandC at 600Blunder rate 0.0%, band median 44.6%

At 600, the Slav Defense: Three Knights Variation scores 45.1% for Black across 1,171 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 0.0% include an early material blunder (1 games at 600).

1000Your bandC at 1000Blunder rate 0.0%, band median 42.9%

At 1000, the Slav Defense: Three Knights Variation scores 45.1% for Black across 11,906 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 0.0% include an early material blunder (1 games at 1000).

1400Your bandD at 1400Blunder rate 66.7%, band median 40.0%

At 1400, the Slav Defense: Three Knights Variation scores 45.0% for Black across 15,996 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 66.7% include an early material blunder (3 games at 1400).

1800Your bandD at 1800Blunder rate 50.0%, band median 36.4%

At 1800, the Slav Defense: Three Knights Variation scores 43.8% for Black across 69,029 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 50.0% include an early material blunder (12 games at 1800).

Variations

Where the line goes next.

The lines that continue the Slav Defense: Three Knights Variation, most played first at your band. Switch the band in the header and both the figures and the order follow.

  • DDDDD43

    Semi-Slav Defense

    1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6

    0.0% of games at 600, n = 5300.0% of games at 1000, n = 5,6440.1% of games at 1400, n = 8,8720.2% of games at 1800, n = 47,463

Questions

Common questions about this page.

At 600, the Slav Defense: Three Knights Variation scores 45.1% for Black across 1,171 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 0.0% include an early material blunder (1 games at 600).

At 1000, the Slav Defense: Three Knights Variation scores 45.1% for Black across 11,906 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 0.0% include an early material blunder (1 games at 1000).

The Slav Defense: Three Knights Variation (D15) is a line for Black. The main line runs 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3.