Chessy
The Trompowsky Attack: Classical Defense with Nc3 – Playing as Black
You've stepped into the Trompowsky Attack, Classical Defense, and White has just played 3.Nc3. This is a rich, combative opening — and from the statistics across over a million games, the score is dead even: White wins 47.8%, Black wins 47.8%, with just 4.3% draws. Stockfish gives White a small edge of +0.41, so you are slightly worse here, but this is a fighting position where Black has real winning chances if White doesn't know what they're doing. The drill below will help you handle White's next move — especially the critical advance e4 — and show you how to punish your opponent's most common inaccuracies.
Play the Trompowsky Attack: Classical Defense: Nc3 against the engine
Free, no signup — you play black, the engine adapts to your level.
Step into the interactive drill and practice this position from Black's side. The engine will adapt to your choices — try punishing 4.Nf3 and see how you handle
Create a free account →The Key Battle: White Pushes e4
In this position, the engine's top choice for White is 4.e4 — a direct central break that immediately challenges your pawn on d5. This move has been played over 320,000 times in the database and scores a solid 50.1% for White. After the forced sequence 4...dxe4 5.Nxe4 Nbd7, White has opened up the centre and developed a knight aggressively. You must be ready to challenge that knight — common ideas include ...Nxe4 or ...Be7 followed by ...0-0 and ...c5. The resulting positions are dynamic, with both sides having chances. If you face 4.e4, remember you're still in the fight: Black's 47.8% overall win rate from the starting position shows this is no pushover.
Punishing White's Most Common Mistake
Here's a crucial piece of practical knowledge: White's most-played move, 4.Nf3 (208,561 games), is actually an inaccuracy that loses roughly 0.7 pawns of advantage. The engine says e4 was clearly better. When White plays 4.Nf3, they develop a knight instead of immediately opening the centre, giving you time to consolidate. Your plan should involve quick development — perhaps ...Be7, ...0-0, and looking for a ...c5 or ...e5 break. The statistics back this up: after 4.Nf3, White scores only 46.9% — well below their average. You are already slightly better than the baseline position after this inaccuracy.
Two More Inaccuracies to Exploit
White has several other tempting but suboptimal moves in this position. Both 4.Bxf6 (162,069 games) and 4.e3 (136,455 games) are classified as inaccuracies, costing White roughly 0.7 and 0.8 pawns respectively compared to the engine's preferred 4.e4. After 4.Bxf6, you recapture with ...Qxf6 and enjoy the two bishops and a comfortable position — White scores a miserable 45.4% here. After 4.e3, a passive-looking move, White scores 47.0%. In both cases, you should aim for rapid development and central control. A quick ...c5 or ...dxe4 followed by ...c5 can put immediate pressure on White's centre.
The Statistics at a Glance
When you face this position, knowing what to expect is half the battle. Here are the most likely moves White will play, ranked by popularity, with their actual results: - 4.e4 (320,694 games, White 50.1%): Engine's best — be sharp here. - 4.Nf3 (208,561 games, White 46.9%): Inaccuracy — you stand slightly better. - 4.Bxf6 (162,069 games, White 45.4%): Inaccuracy — your best score. - 4.e3 (136,455 games, White 47.0%): Inaccuracy — develop freely. - 4.a3 (50,984 games, White 49.1%): Rare, but White scores okay. - 4.f3 (33,569 games, White 48.1%): Uncommon. The takeaway? If White plays anything other than 4.e4, they've given you a real opportunity to outplay them from a position where the initial evaluation was already only a small edge for your opponent.
Results across 1,006,255 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| e4 | 320,694 | 50.1% |
| Nf3 | 208,561 | 46.9% |
| Bxf6 | 162,069 | 45.4% |
| e3 | 136,455 | 47.0% |
| a3 | 50,984 | 49.1% |
| f3 | 33,569 | 48.1% |
Frequently asked questions
Is the Trompowsky Attack good for White against the Classical Defense with Nc3?
The engine gives White a small edge of +0.41, so White is slightly better with best play. However, across over a million games the results are perfectly balanced — White wins 47.8%, Black wins 47.8%. In practice, it's a fighting opening where either side can win.
What is White's best move after 1.d4 Nf6 2.Bg5 e6 3.Nc3 d5?
The engine's top choice is 4.e4, immediately opening the centre. This leads to 4...dxe4 5.Nxe4 Nbd7. It has been played over 320,000 times and scores 50.1% for White. Most other popular moves like 4.Nf3, 4.Bxf6, and 4.e3 are all inaccuracies.
How should Black respond to White's most common mistake in this position?
White's most common mistake is 4.Nf3, which is an inaccuracy costing roughly 0.7 pawns. After this move, White scores only 46.9%. Black should develop naturally with ...Be7, castle, and prepare a timely ...c5 or ...e5 break to challenge White's centre.
What happens after White plays 4.Bxf6 in the Trompowsky Classical Nc3?
After 4.Bxf6, Black recaptures with ...Qxf6, gaining the two bishops and a comfortable game. This move is an inaccuracy for White, costing about 0.7 pawns. White scores only 45.4% from here — the worst result of any major continuation.