C42 · Opening trap · Petrov's Defense: Stafford Gambit

Stafford Gambit Trap

The Stafford Gambit Trap: White pins the knight with 6.Bg5?? and Black ignores it. 6...Nxe4! gives up the queen and mates with two bishops.

Set byBlack
Losing move6.Bg5? → 6...Nxe4!

Black gives a pawn in the Petrov for fast development and a pile of tricks, made famous online by Eric Rosen. The gambit is unsound: with accurate play White is two pawns better by the engine. The catch is that the natural moves lose.

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The trap1 / 3

Stafford Gambit Trap

Getting there…

6.Bg5 pins the knight to the queen, and Black moves it anyway. After 6...Nxe4! 7.Bxd8 Bxf2+ 8.Ke2 Bg4 it is mate. If White declines the queen with 7.dxe4, then 7...Bxf2+ 8.Ke2 Bg4+ wins the white queen instead.

+2.1-6.5after the losing move (plus is good for White)
←→ movesNP next / prev cardF flipR solution⌫ take back

How the Stafford Gambit Trap works

Click a card to see it on the board, then play the punishment yourself.

How often does it work?

Counted in real rated Lichess games, not estimated.

RatingReached the positionPlayed 6.Bg5?Fall rate
1200–1400606 games10417%
1500–1700835 games8911%
1900–2100696 games183%

Sample: up to 1,000,000 rated Lichess games per rating band (May 2024), same move order only.

Among players rated 1800 and higher, 6.Bg5? was played in 2,130 of the games our puzzles are drawn from. Strong players fall for it too.

How to avoid the Stafford Gambit Trap

What White should play instead.

Other versions of the trap

The same idea from a different move order.

Now spot it in a real game

Knowing a trap by name is not the same as seeing it at the board. Solve positions from real games until the pattern fires by itself.