Scandinavian Defense: Gubinsky-Melts Defense with 4.d4 — Playing as Black

After 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6, Black has a solid but slightly cramped setup. Your queen sits on d6, eyeing the kingside and supporting ...c6 or ...e6 breaks. The knight on f6 attacks e4 and prepares natural development. Stockfish rates this +0.73, a clear edge for White. That means you, as Black, are clearly worse according to the engine. The advantage comes from White's space in the centre and the fact that your queen has moved twice already — a small but real concession. However, human players don't convert that advantage easily. White's win rate is 49.2%, Black's is 46.4%, with only 4.4% draws. Those numbers tell you that the position is sharp and that Black has real counterplay if you know the typical plans. You're aiming for a setup with ...g6 and ...Bg7, fianchettoing your bishop to challenge the long diagonal, or alternatively ...c6 and ...e6 to build a solid centre. The key is to complete development quickly and not let White's space advantage turn into a direct attack.

White's best move here is 5.Nf3, played in 300,825 games — by far the most popular choice. The engine continues this line with 5...g6 6.Nb5 Qb6. Let's look at what happens. After 5.Nf3, you should respond with 5...g6, preparing to fianchetto your dark-squared bishop. This is healthy development that puts pressure on d4 indirectly. White then plays 6.Nb5, hitting your queen and threatening Nc7+ forks. Your correct reply is 6...Qb6, moving the queen to a safe square while keeping an eye on the b-file and the d4 pawn. From here, the position remains complicated. White scores 49.1% after 5.Nf3, almost exactly average — showing that even this best move doesn't give White an easy time. What matters is that you don't panic when the knight jumps to b5. The queen retreat to b6 is natural, and Black's structure with ...g6 and ...Bg7 is solid.

The most interesting stat in the Gubinsky-Melts Defense is how White's different continuations score. Let's compare the most-played moves: 5.Nf3 (300,825 games) gives White 49.1%; 5.g3 (35,350 games) gives White 50.6%; 5.Bc4 (25,984 games) gives White 48.6%; 5.Be3 (24,317 games) gives White 48.5%; 5.h3 (15,270 games) gives White 49.3%; and 5.Bg5 (13,392 games) gives White only 47.1% — the worst score of the bunch. That's a remarkable finding. When White plays 5.Bg5, pinning your knight, they actually score below 50% — meaning Black outplays White from that position in practice. This suggests that the Bg5 pin can backfire if you know how to handle it. A natural response is ...Nbd7 or ...c6, breaking the pin and challenging White's centre. Meanwhile, 5.g3 (the second-most popular choice) gives White their best score at 50.6%, so be slightly more careful against that quiet, positional setup.

If you're playing Black in this position, a few pitfalls can turn a playable game into a lost one quickly. First, don't develop your queen's bishop to a passive square or forget about your kingside development. After moves like 5.Bc4 or 5.Bg5, your priority is still ...g6 and ...Bg7 or ...e6 and ...Be7. Second, watch out for the Nb5 idea — after 5.Nf3, if you play a move like 5...c6 without thinking, you might allow 6.Ne5 or other tricks. The engine's line 5...g6 6.Nb5 Qb6 is concrete and keeps things under control. Third, don't trade your active queen for a knight unnecessarily. The queen on b6 or d6 is a useful piece that supports ...c5 breaks. And finally, don't castle too early into an attack. Since White has more space, a premature kingside castling can walk into a pawn storm. Take your time, complete development, and look for ...c5 to strike at White's centre — that's the typical freeing break in this Scandinavian line.