600Your bandC at 600
At 600, the Petrov's Defense: Stafford Gambit Accepted scores 52.5% for Black across 320 games. That is below average at this level.
- 1.
- 2.
- 3.
- 4.
- 5.
Click a move, or focus the board and use the arrow keys.
Petrov's DefenseStafford Gambit Accepted
1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5
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
- 52.5%55.1%52.2%49.1%
- Band 600, n = 320Band 1000, n = 5,297Band 1400, n = 6,892Band 1800, n = 13,442
- Blunder rate
- pending40.0%38.5%35.7%
- Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
- Tier
- CABC
- Black, band 600Black, band 1000Black, band 1400Black, band 1800
- Share of games
- 0.0%0.0%0.1%0.1%
- Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
| Band | White | Draw | Black | Blunder | Book exit | Games | Tier |
|---|---|---|---|---|---|---|---|
| 600 | 43.8% | 3.8% | 52.5% | - | - | 320 | C |
| 1000 | 42.3% | 2.7% | 55.1% | 40.0% | ply 10.2 | 5,297 | A |
| 1400 | 44.9% | 2.9% | 52.2% | 38.5% | ply 10.1 | 6,892 | B |
| 1800 | 47.3% | 3.5% | 49.1% | 35.7% | ply 10.1 | 13,442 | C |
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.
1000Your bandA at 1000Blunder rate 40.0%, band median 42.9%
At 1000, the Petrov's Defense: Stafford Gambit Accepted scores 55.1% for Black across 5,297 games. That is comfortably above average at this level. Games in this line leave known theory around move 6 on average, and 40.0% include an early material blunder (10 games at 1000).
1400Your bandB at 1400Blunder rate 38.5%, band median 40.0%
At 1400, the Petrov's Defense: Stafford Gambit Accepted scores 52.2% for Black across 6,892 games. That is close to the average at this level. Games in this line leave known theory around move 6 on average, and 38.5% include an early material blunder (13 games at 1400).
1800Your bandC at 1800Blunder rate 35.7%, band median 36.4%
At 1800, the Petrov's Defense: Stafford Gambit Accepted scores 49.1% for Black across 13,442 games. That is below average at this level. Games in this line leave known theory around move 6 on average, and 35.7% include an early material blunder (28 games at 1800).
Blunders and traps
How this opening ends early.
The known traps that live inside the Petrov's Defense: Stafford Gambit Accepted. The rates are how often each one actually lands in your band, counted against every sampled game in that band.
- 6...
- 7.
- 8.
Click a move, or focus the board and use the arrow keys.
Stafford Gambit: Oh No My Queen
1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5 6. Bg5
Sprung by Black. The move that invites it is Bg5.
The most famous Stafford trick. 6. Bg5 pins nothing: 6...Nxe4 offers the queen, and taking it allows mate in two.
0 hitsBand 600
1 in 14,024Band 1000
1 in 21,354Band 1400
1 in 20,270Band 1800
Read as: how often this trap line is completed per sampled game in the band.
How the Blunder Rate is measured. A material swing of three points or more inside the first 24 half-moves after leaving book, detected without an engine evaluation. It is a proxy for how sharp a position is in practice, not an engine verdict, and it is computed from a monthly game sample rather than the full corpus behind the win rates. Trap hit rates count a trap only when its full line is completed on the board.
Questions
Common questions about this page.
At 600, the Petrov's Defense: Stafford Gambit Accepted scores 52.5% for Black across 320 games. That is below average at this level.
At 1000, the Petrov's Defense: Stafford Gambit Accepted scores 55.1% for Black across 5,297 games. That is comfortably above average at this level. Games in this line leave known theory around move 6 on average, and 40.0% include an early material blunder (10 games at 1000).
The Petrov's Defense: Stafford Gambit Accepted (C42) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. d3 Bc5.