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Scandinavian Mainline: d4 – A Complete Guide for Black
After 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 g6, you have reached one of the most solid ways to handle the Scandinavian Defence as Black. You've already avoided the trickier lines — now comes the real test. Stockfish evaluates this position at +0.89, a clear edge for White, meaning you are noticeably worse according to the engine. But don't let that number discourage you: over 33,000 games have been played from here, and Black still scores a respectable 44.3%. The fight is just beginning. Let's look at what Black is aiming for and how to handle White's most common responses. The interactive drill below will put these ideas into practice.
Play the Scandinavian Mainline: d4 against the engine
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Play through the Scandinavian Mainline: d4 as Black in the interactive drill below. Practice the main responses to Bd2, Nf3, and Bc4 — and learn to punish the B
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By playing 4...g6, Black commits to a kingside fianchetto. Your light-squared bishop belongs on g7, where it will eye the centre and the long diagonal. This setup aims to challenge White's d4-pawn early with ...Bg7 and ...Nf6, putting pressure on the d4–e5 complex. You are also preparing to castle quickly, keeping your king safe while you develop. The downside is that White has a space advantage and central control, especially with the pawn on d4 and the knight on c3 already eyeing the queen on a5. Your task is to complete development without falling behind, then look for opportunities to undermine White's centre. The engine's verdict (+0.89) reflects White's comfortable position, but this is a fighting line where Black can outplay opponents who don't know the typical plans.
The Engine's Best Answer: Bd2
White's top choice — and the most popular move by a wide margin — is Bd2, played in over 16,700 games. After 5.Bd2, the engine's recommended continuation is 5...Nf6 6.Bc4 Qb6. The bishop on d2 simply attacks your queen, forcing it to move. Your best response is to develop naturally with ...Nf6, and when White brings the other bishop to c4, the queen retreats to b6. From b6, the queen keeps an eye on the b2-pawn and supports ...c5 breaks later. Note that White scores a modest 51.9% after Bd2 — far from crushing. This is a position where solid, principled moves keep you in the game, and many White players fail to convert their theoretical edge.
The Most Popular Alternative: Nf3
The second-most common move is 5.Nf3, appearing in nearly 12,000 games with White scoring 52.8%. Here Black can continue with natural development: ...Bg7, ...Nf6, and ...0-0. The knight on f3 doesn't directly attack your queen, so you have more freedom. However, White's plan often involves Bc4, 0-0, and maybe Re1, trying to exploit the queen's exposed position. Your recipe is the same: develop quickly, fianchetto the bishop, castle, and look for counterplay with ...c5 or ...Rd8. The statistics show that even here White wins only about half the time — Black's practical chances are solid.
The Mistake to Punish: Bf4
One move that pops up with some frequency is 5.Bf4 (played in 568 games). According to the engine, this is an inaccuracy that loses roughly 0.6 pawns in evaluation. The problem for White is that the bishop on f4 does nothing to challenge your queen on a5, and it doesn't help control the centre. After 5...Bg7, White's best course would have been the more active Bc4 instead. If you see Bf4 from your opponent, breathe a little easier — you have improved your position without doing anything special. Simply continue your development, and you will already have the edge. This is a good example of why you should know your opening: not every move by White is dangerous.
Results across 33,257 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bd2 | 16,737 | 51.9% |
| Nf3 | 11,704 | 52.8% |
| Bc4 | 1,404 | 58.3% |
| Be3 | 698 | 51.3% |
| Bf4 | 568 | 49.6% |
| Bd3 | 418 | 51.4% |
Frequently asked questions
Is the Scandinavian Mainline: d4 a good opening for beginners to play as Black?
Yes — it's straightforward and principled. You trade a central pawn, develop your queen, and fianchetto your kingside bishop. The plans are clear: castle early, put pressure on d4 with ...Bg7 and ...Nf6, and look for ...c5 breaks. You don't need to memorise long forcing lines.
Why do so many White players choose 5.Bd2 against the Scandinavian Mainline?
Bd2 is the most natural developing move that also attacks your queen on a5. It forces Black to move the queen, which costs a tempo. But after 5...Nf6 6.Bc4 Qb6, Black's position is solid and White's win rate is only 51.9% — far from a forced win.
What should I do if White plays 5.Bf4 against the Scandinavian Mainline?
5.Bf4 is a mistake that loses about 0.6 pawns. Simply continue with 5...Bg7 and develop normally. The bishop on f4 doesn't attack anything important and doesn't challenge your queen. You will find yourself with an improved position compared to the main lines.
Is +0.89 a bad sign for Black in the Scandinavian Mainline?
+0.89 means White is clearly better according to the engine, but in practice Black scores 44.3% from this position over 33,000 games. A computer advantage doesn't always translate to easy wins for humans. If you know the typical plans, you can outplay your opponent.
How many games feature the Scandinavian Mainline: d4?
Over 33K Lichess games have reached the Scandinavian Mainline: d4 position. White wins 52.2%, Black wins 44.3%, with 3.6% draws — based on real rated games.