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King's Pawn GameMcConnell Defense

C40For BlackLow theory

1. e4 e5 2. Nf3 Qf6

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
43.5%45.5%46.3%45.9%
Band 600, n = 29,426Band 1000, n = 77,506Band 1400, n = 39,127Band 1800, n = 32,676
Blunder rate
43.8%42.4%30.7%31.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCCC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.7%0.5%0.4%0.2%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60052.8%3.7%43.5%43.8%ply 4.029,426C
100050.9%3.6%45.5%42.4%ply 4.077,506C
140049.9%3.8%46.3%30.7%ply 4.039,127C
180050.0%4.1%45.9%31.3%ply 4.032,676C

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 43.8%, band median 44.6%

At 600, the King's Pawn Game: McConnell Defense scores 43.5% for Black across 29,426 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 43.8% include an early material blunder (48 games at 600).

1000Your bandC at 1000Blunder rate 42.4%, band median 42.9%

At 1000, the King's Pawn Game: McConnell Defense scores 45.5% for Black across 77,506 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.4% include an early material blunder (139 games at 1000).

1400Your bandC at 1400Blunder rate 30.7%, band median 40.0%

At 1400, the King's Pawn Game: McConnell Defense scores 46.3% for Black across 39,127 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 30.7% include an early material blunder (75 games at 1400).

1800Your bandC at 1800Blunder rate 31.3%, band median 36.4%

At 1800, the King's Pawn Game: McConnell Defense scores 45.9% for Black across 32,676 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 31.3% include an early material blunder (64 games at 1800).

Questions

Common questions about this page.

At 600, the King's Pawn Game: McConnell Defense scores 43.5% for Black across 29,426 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 43.8% include an early material blunder (48 games at 600).

At 1000, the King's Pawn Game: McConnell Defense scores 45.5% for Black across 77,506 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.4% include an early material blunder (139 games at 1000).

The King's Pawn Game: McConnell Defense (C40) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Qf6.