Queen's Gambit Accepted: Central Variation, McDonnell Defense — Playing as Black

ECO D20 14,536 games Stockfish +0.46

The Queen's Gambit Accepted usually leads to quiet positional games — but not this line. After 1.d4 d5 2.c4 dxc4 3.e4 e5, Black has already grabbed a pawn and challenged the centre. The McDonnell Defense continues with 4.Nf3 Bb4+, pinning the knight and putting immediate pressure on White's setup. Stockfish gives +0.46 here, a slight edge for White, meaning you are a little worse as Black — but the position is sharp and full of counterplay. With over 14,500 games in the database, the statistics show you have real winning chances: Black wins 41.2% of the time. The key is knowing how to handle White's best responses and spotting their mistakes when they happen.

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The Main Idea Behind 4...Bb4+

By playing 4...Bb4+, you put White on the spot immediately. You develop a piece, pin the knight on f3 against the king, and prevent White from comfortably recapturing the pawn on c4. White's most natural response is 5.Nc3, blocking the pin and defending the e4 pawn. The engine confirms this as the best move, and it leads to the main line: 5.Nc3 Nf6 6.Nxe5 b5, where you fight to keep your extra pawn while completing development. The point of your early bishop sortie is to create a tense, tactical struggle — you're not just handing over the centre; you're making White earn every inch of space.

What the Statistics Reveal

Across 14,536 games in the Lichess database, the results show this is far from hopeless for Black. White wins 54.2%, draws happen only 4.6% of the time, and Black wins 41.2%. That is a healthy share of the full points for the second player. The low draw rate tells you this is a fighting line: positions stay sharp, and both sides have chances to outplay each other. If you enjoy dynamic, open games where one mistake can decide the outcome, this variation suits your style.

White's Best Move — and How to Answer

The most popular move by a huge margin is 5.Nc3, appearing in 9,746 games with White scoring 54.9%. That's your main challenge. After 5.Nc3, you play 5...Nf6, developing and attacking the e4 pawn. White's best follow-up is 6.Nxe5, grabbing the pawn back, and then you answer with 6...b5, protecting your c4 pawn and keeping the tension alive. The position remains complex, with both sides having active pieces. Your bishop on b4 pins the knight on c3, and you'll aim to castle quickly and decide whether to hold c4 or give it back for development.

Punishing White's Common Mistakes

White can go wrong in several ways here, and knowing these errors will win you games. The most frequent mistake is 5.Nbd2, played 323 times. This is an inaccuracy that costs White about 0.7 pawns compared to 5.Nc3. Your reply should be the same: develop with 5...Nf6, and you'll be better off than you would be in the main line. Worse is 5.Ke2, a real blunder that loses around 2.1 pawns. Castling is ruined and White's king is stuck in the centre. Finally, 5.Qd2 is a catastrophic mistake — it loses about 5.8 pawns. The queen blocks your own bishop and does nothing to address the threats. In both cases, simply develop naturally and you'll have a huge advantage.

Results across 14,536 Lichess games

54.2%
4.6%
41.2%
■ White 54.2% ■ Draw 4.6% ■ Black 41.2%
Most-played continuationGamesWhite wins
Nc39,74654.9%
Bd24,45552.8%
Nbd232352.3%
Qd250.0%
Ke2450.0%
Nfd230.0%

Frequently asked questions

Is the Queen's Gambit Accepted: Central Variation, McDonnell Defense sound for Black?

Yes, it is playable and active. Stockfish gives White only a slight edge (+0.46), and Black wins 41.2% of games in the database. The low draw rate (4.6%) shows both sides get real winning chances in the sharp middlegames that follow.

What is White's best move after 4...Bb4+?

The engine recommends 5.Nc3, which blocks the pin and defends the e4 pawn. This is also the most popular move by far, appearing in over 9,700 games. After 5.Nc3 Nf6, the main line continues 6.Nxe5 b5.

What are the biggest mistakes White can make in this position?

Playing 5.Qd2 is a blunder costing about 5.8 pawns — a free win for you. 5.Ke2 is also very bad (losing ~2.1 pawns), leaving the king exposed. Even 5.Nbd2 is an inaccuracy that gives you a comfortable edge as Black.

How should Black play after 5.Nc3?

Develop with 5...Nf6, attacking the e4 pawn. When White captures with 6.Nxe5, reply 6...b5 to protect your extra pawn on c4. You'll have active pieces, a pin on the c3 knight, and a solid position to build on.