← Petrov's Defense

Practice: Petrov's Defense

Solid symmetry after 1.e4 e5

Instead of defending e5, Black immediately counterattacks with 2...Nf6. A solid and drawish defense used by players who want reliable equality with Black.

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Key strategic ideas

  • Black immediately strikes back with 2...Nf6 instead of defending the e5 pawn. This avoids the main lines of the Italian and Ruy Lopez.
  • After 3.Nxe5 d6 4.Nf3 Nxe4, both sides have traded pawns and the position is balanced. White's advantage is very small in most lines.
  • The Petrov is often used to draw with Black, but the Stafford Gambit (3...Nxe4?!) is a wild sideline where Black sacrifices more for a fierce attack. Popular in online blitz.

Common mistakes & traps

  • The Stafford Gambit (3...Nxe4 4.d4 d5 5.Nc3?! Nxc3 6.bxc3 Bf5) gives Black surprising attacking chances. Even strong players have lost to it in blitz.
  • After 3.Nxe5 d6 4.Nf3 Nxe4, beginners often play 5.Qe2? Qe7 6.d3 Nf6. Trading queens early helps Black equalise easily.

Pawn structure notes

The pawn structure is symmetrical. The e4 and e5 pawns get traded early, simplifying the game. Neither side has major structural weaknesses in most lines.

All lines in Petrov's Defense

Classical Variation intermediate
1. e4 e5
2. Nf3 Nf6
3. Nxe5 d6
4. Nf3 Nxe4
5. d4
White captures on e5, Black pushes d6 to win back the knight, and both sides regain material. White keeps a slight initiative with d4.
Practice
Three Knights Variation beginner
1. e4 e5
2. Nf3 Nf6
3. Nc3
White avoids the symmetrical Petrov endgame by playing 3.Nc3 instead of Nxe5. Leads to livelier, less forced positions.
Practice
Stafford Gambit intermediate
1. e4 e5
2. Nf3 Nf6
3. Nxe5 Nc6
4. Nxc6 dxc6
5. d3 Bc5
6. Be2 h5
After 2...Nf6, Black plays 3...Nc6 sacrificing a pawn for rapid development and attacking chances. Made famous by Eric Rosen - traps White players constantly in online games.
Practice
Nimzowitsch Attack intermediate
1. e4 e5
2. Nf3 Nf6
3. Nxe5 d6
4. Nf3 Nxe4
5. Nc3 Nxc3
6. dxc3 Be7
Instead of the classical 5.d4, White plays 5.Nc3 immediately attacking the knight. After the exchange on c3, White has the bishop pair and open d-file.
Practice
Cochrane Gambit advanced
1. e4 e5
2. Nf3 Nf6
3. Nxe5 d6
4. Nxf7 Kxf7
5. Bc4+ Be6
6. Bxe6+ Kxe6
7. d4
White sacrifices a knight to rip open the Black king position. An all-out attacking line that creates chaos and rewards aggressive play.
Practice