Italian Game: Two Knights Defense, Polerio Defense, Suhle Defense

Before the first move

The Italian Game's Two Knights Defense is a high-stakes battle for the initiative. Black sacrifices a pawn early to force White's pieces into awkward retreats, creating a dynamic imbalance where Black's activity and lead in development compensate for the material deficit.

1. e4White

White starts with e4, the most popular move in chess. By occupying the center, White prepares to develop pieces rapidly and control the flow of the game.

1... e5Black · your move

Respond by moving your pawn to e5. By mirroring White, you establish your own stake in the center and prevent White from gaining an easy space advantage.

Other paths here: f6 (Barnes Defense) · g5 (Borg Defense) · h6 (Carr Defense) · f5 (Duras Gambit)

2. Nf3White

White plays Nf3, putting immediate pressure on your center. You'll need to defend e5, though White could also try the Center Game with d4 or the Alapin with Ne2.

Other paths here: Ke2 (Bongcloud Attack) · d4 (Center Game) · c4 (English Opening: The Whale) · Ne2 (King's Pawn Game: Alapin Opening)

2... Nc6Black · your move

Bring your knight to c6 to defend your e5-pawn. This is the most natural developing move, preparing for a fight in the center while keeping your options open.

Other paths here: d5 (Elephant Gambit) · Qe7 (Gunderam Defense) · Bc5 (King's Pawn Game: Busch-Gass Gambit) · f6 (King's Pawn Game: Damiano Defense)

3. Bc4White

White plays Bc4, entering the Italian Game. This bishop is very influential on the a2-g8 diagonal. Alternatives like the Ruy Lopez with Bb5 are equally popular at the top level.

Other paths here: Nxe5 (Irish Gambit) · g3 (King's Knight Opening: Konstantinopolsky) · c4 (King's Pawn Game: Dresden Opening) · b4 (King's Pawn Game: Pachman Wing Gambit)

3... Nf6Black · your move

Develop your other knight to f6, attacking the e4-pawn. This move invites the sharpest variations of the Italian, challenging White to defend or counterattack.

Other paths here: h6 (Italian Game: Anti-Fried Liver Defense) · Nd4 (Italian Game: Blackburne-Kostić Gambit) · Bc5 (Italian Game: Giuoco Piano) · Be7 (Italian Game: Hungarian Defense)

4. Ng5White

White plays Ng5, the Fried Liver attack's precursor. It is a direct provocation. White could also choose to play d3 for a slower game or d4 for the Max Lange Attack.

Other paths here: Nc3 (Four Knights Game: Italian Variation) · d3 (Italian Game: Two Knights Defense, Modern Bishop's Opening) · d4 (Italian Game: Two Knights Defense, Open Variation) · O-O (Two Knights Defence)

4... d5Black · your move

Push your pawn to d5. This is the only way to block the bishop's path to f7. You are offering a pawn to gain time and disrupt White's coordination.

Other paths here: Nxe4 (Italian Game: Two Knights Defense, Ponziani-Steinitz Gambit) · Bc5 (Italian Game: Two Knights Defense, Traxler Counterattack) · Nd5 (Two Knights Defence)

5. exd5White

White takes the pawn, opening the center. Black must now decide how to deal with the threat on c6 and the misplaced knight on g5.

5... Na5Black · your move

Move your knight to the edge at a5, attacking the bishop on c4. This move is the hallmark of the Polerio Defense, sacrificing a pawn for long-term initiative.

Other paths here: Nd4 (Italian Game: Two Knights Defense, Fritz Variation) · Nb4 (Italian Game: Two Knights Defense, Kloss Gambit) · b5 (Italian Game: Two Knights Defense, Ulvestad Variation) · Nxd5 (Two Knights: 4.Ng5 d5 5.exd5 Nxd5)

6. Bb5+White

White plays Bb5+, checking the king. White could also retreat the bishop to e2 immediately, but this check forces Black to further weaken their queenside pawn structure.

Other paths here: d3 (Italian Game: Two Knights Defense, Polerio Defense, Kieseritzky Variation) · Bb5 (Two Knights Defence: Morphy, Polerio, 6...Bd7)

6... c6Black · your move

Block the check by pushing your pawn to c6. This move also attacks the bishop, forcing it to make a decision while you prepare to reclaim the center.

Other paths here: Bd7 (Two Knights: Morphy, Polerio, 6...Bd7)

7. dxc6White

White captures on c6, accepting the challenge. The position is now highly asymmetrical; White has the material, but Black is about to gain significant time by attacking White's pieces.

7... bxc6Black · your move

Recapture with your b-pawn. This solidifies your control of the center and opens the b-file for your rook. You are now down a pawn but have excellent piece play.

8. Be2White

White retreats with Be2, the Suhle Defense. This is more solid than the Bogoljubow Variation with Qf3, which tries to hold onto the pawn more aggressively but risks faster development.

Other paths here: Qf3 (Italian Game: Two Knights Defense, Polerio Defense, Bogoljubow Variation)

8... h6Black · your move

Push your pawn to h6 to kick the knight. This forces the knight to retreat to a passive square, allowing you to continue your development with high energy.

Where you stand

The position is a classic battle of material versus initiative. White is a pawn up but must play accurately to withstand Black's rapid development and central control. Black will look to use the semi-open b-file and active bishops to create threats, while White aims to consolidate, castle, and eventually exploit the extra pawn in an endgame.

• g5-f3 Retreat the knight to safety
• f8-d6 Develop the bishop to an active diagonal
• e1-g1 Castle to secure the king
• a5-c4 Reroute the knight back into play