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How to Play the QGD Orthodox Defense: Bg5 as Black
The Queen's Gambit Declined is one of the most solid openings in chess, and this particular line — the Orthodox Defense with Bg5 — has been tested in over 390,000 games. If you're playing Black here, you've already played 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6, and now it's White's turn. The position is very much playable for you. Stockfish evaluates it at +0.26, a small edge for White, meaning you are only slightly worse — no reason to panic. Below the drill, we'll walk through what matters in this position, how to respond to White's most common moves, and which White blunders you should be ready to punish.
Play the QGD: Orthodox Defense: Bg5 against the engine
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Create a free account →What You're Fighting For in This Position
The key battle in the Orthodox Defense revolves around the d5 pawn and the light-squared bishop. By playing h6 on move 5, you've asked White a question: do they exchange on f6, retreat the bishop, or move it somewhere else? You've also created a small bit of luft for your king, which can be useful later. Your main long-term goal is to complete development, get your light-squared bishop out (often after ...dxc4 and ...b5, or via ...Bd6 and ...O-O), and eventually challenge White's centre with ...c5 or ...e5. The position is rich but quiet — you're not in immediate danger, and White's slight edge (+0.26) is the kind that only matters at very high levels. For club players, the game is wide open.
The Engine's Best Move: Bh4 and How to Meet It
The top engine choice for White is 6.Bh4, which has been played in over 270,000 games and scores 51.1% for White. After Bh4, the recommended continuation is ...dxc4 7.e3 Nd5. Why does that make sense? By taking on c4, you're temporarily giving up the centre to free your position and aim for a quick ...b5 to save the extra pawn. Then Nd5 attacks the bishop on h4 and prepares to simplify into a comfortable middlegame. This line leads to well-known positions where Black has decent counterplay. Don't be afraid to play ...dxc4 — it's the standard reaction and has been played thousands of times.
The Surprising Statistics: What the Numbers Reveal
The overall results from 390,262 games show White winning 50.6%, draws 4.7%, and Black winning 44.8%. That 44.8% is a healthy score for Black — you're winning almost as often as White, and draws are rare. This tells you the position is far from one-sided. Among White's choices, 6.Bh4 (51.1% White) and 6.Bxf6 (50.3% White) are both normal, but watch out: 6.Bd2 gives White only 46.9% — so if your opponent plays that, you're already scoring better than they are. And if they play 6.e3? White scores just 31.4%, which means you're a huge favourite.
Punishing White's Mistakes
Three White moves in this position are clearly bad, and you need to know them so you can capitalise. 6.Bd2 is an inaccuracy that loses White about 0.6 pawns — the engine says Bh4 was better. After Bd2, just continue developing naturally. Much more serious is 6.e3, which is a blunder costing White around 4.3 pawns. Yes, seriously. White should never block their dark-squared bishop with e3 when it could have retreated to h4. If your opponent plays e3, you're already close to winning. Finally, 6.Be3 is another inaccuracy dropping about 0.8 pawns. Against all of these, your plan remains the same: develop quickly, keep the pressure on, and enjoy the advantage the statistics say you have.
Results across 390,262 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bh4 | 270,918 | 51.1% |
| Bxf6 | 79,136 | 50.3% |
| Bf4 | 30,556 | 50.4% |
| Bd2 | 4,073 | 46.9% |
| e3 | 3,735 | 31.4% |
| Be3 | 616 | 47.6% |
Frequently asked questions
Is 5...h6 a good move in the QGD Orthodox Defense?
Yes, 5...h6 is the standard and most popular move in this position. It forces White to declare their intentions with the bishop — retreat, capture, or move elsewhere. It also gives your king a little breathing room and has been played in tens of thousands of games at all levels.
Should I play ...dxc4 after 6.Bh4?
Absolutely. The engine's best continuation after 6.Bh4 is ...dxc4 7.e3 Nd5. Taking on c4 is a typical QGD idea that opens lines for your pieces, and Nd5 attacks the bishop on h4 while threatening to simplify into a favourable endgame or middlegame.
What's the worst move White can play here?
6.e3 is a genuine blunder, losing about 4.3 pawns according to Stockfish. White blocks their own bishop and wastes a tempo. If your opponent plays e3, you can be very happy — the stats show White scores only 31.4% from that position, so you're a clear favourite.
Why do draws happen so rarely in this opening?
From over 390,000 games, only 4.7% ended in a draw. The QGD Orthodox Defense tends to produce imbalanced, fighting positions where both sides have clear plans and the game typically reaches a decisive result. If you want sharp play with winning chances, this is a great opening to choose.
How many games feature the QGD: Orthodox Defense: Bg5?
Over 390K Lichess games have reached the QGD: Orthodox Defense: Bg5 position. White wins 50.6%, Black wins 44.8%, with 4.7% draws — based on real rated games.
What is Stockfish's evaluation of the QGD: Orthodox Defense: Bg5?
At depth 16, Stockfish rates the QGD: Orthodox Defense: Bg5 as a balanced position (+0.26) from White's perspective. This is the computer's assessment of the position after the main opening moves.