Your Guide to the Italian Game: Two Knights Defense with 4.Nc3

With 4.Nc3, White strengthens their grip on the d5 square and avoids the complications of 4.Ng5 or the centre-opening 4.d4. You, as Black, have already claimed your share of the centre with …e5 and …Nf6. Now your aim is to finish development quickly, keep the king safe, and avoid hanging pawns or loose pieces. The key tension is in the centre: White hasn't committed their d-pawn yet, so you should be ready to meet either d3 (the engine's top choice) or an early O-O with a solid setup of your own. Your bishop on c5 is active but exposed — one wrong White move (like Ng5 or d4) can turn into an opportunity for you.

The most popular move by a huge margin is 5.d3, appearing in over 7.2 million games. White scores only 50.1% here — not a threatening number for Black. The engine's suggested follow-up for White is d3 a6 Nd5 h6, but you won't face that exact sequence every time. Your general idea against d3 is straightforward: develop your kingside with short castling, keep the bishop on c5 ready to retreat if attacked, and avoid any rash pawn pushes that create weaknesses. The position is balanced, so you can play natural, principled moves without worrying about a hidden White trap.

The statistics reveal something unexpected: the two flashiest White moves from this position are actually mistakes. Ng5 — often feared by beginners — is played over 1.6 million times but scores a poor 44.5% for White and loses about 1.0 pawns according to the engine. White would have been better playing the humble d3 instead. Even more dramatic is 5.d4, played over 245,000 times despite scoring only 41.4% for White — a huge underperformance that signals Black is doing something right. If your opponent plays either of these, you've already achieved an edge, and the engine considers both losing about 1.0 pawns compared to the best line. The real threat is the quiet moves: d3, h3, and a3 all score around 50% or better for White.

So what should you do when White plays 5.Ng5 or 5.d4? Against 5.Ng5, remember this is not the famous Fried Liver Attack (which required White's bishop on c4 and a knight on f3 going to g5 after d4). Here, with the knight already on c3 and your bishop on c5, the standard d5 push is still your key resource. You can often chase the knight or open lines against White's king. Against 5.d4, you should be happy — you're already a full move ahead in development compared to the normal Italian d4 lines. Take with the pawn, develop naturally, and enjoy the comfortable Black position that the stats show is scoring terribly for White. The moral: don't fear Ng5, and welcome d4.

The Two Knights Defense with Nc3 is perfect if you want a reliable, no-trick Black repertoire that still offers winning chances. You avoid memorising endless theory while keeping a healthy centre and active pieces. The 47.6% Black win rate (with only 4.3% draws) means the position rarely fizzles into a quick draw — you'll almost always get a playable middlegame. It's especially good against opponents who expect aggressive Italian lines but don't know how to handle a calm Nc3 setup. If you prefer counterpunching to theoretical memorisation, this line is for you.