Master the Vienna: King's Gambit with Bb4

After the opening moves 1.e4 e5 2.Nc3 Nf6 3.f4 Bb4, the pawn rush 4.fxe5 is a hammer blow. Black's bishop on b4 attacks the knight on c3, but your central pawn grab demands immediate attention. The position is now razor-sharp — Black's pinned knight on f6 is under attack, and the e5 pawn threatens to capture it. This is not a quiet positional line; it's a tactical street fight where one extra tempo decides everything. Across over 132,000 Lichess games from this exact position, you (White) win a commanding 53.8% of the time, with Black only managing 42.9%. The engine's +2.12 assessment confirms this is close to a winning advantage for you. Now, the question is: which of Black's replies should you be ready for?

Black's best — and by far most common — reply is 4...Bxc3, played in over 115,000 games. The idea is to trade bishop for knight before White can castle or play d3, disrupting your queenside pawn structure. The engine's best continuation is 5.Bxc3 dxc3 6.Nxe4 Qg4, and you need to know your follow-up. After 4...Bxc3, White scores a solid 52.1%, which is respectable but not your highest win rate — that's because Black has found the toughest defence. Your plan after 6...Qg4 should focus on exploiting Black's exposed king and your development lead. Remember: you have the bishop pair (with your light-squared bishop unchallenged), Black's king is stuck in the centre, and your d-pawn can advance with tempo ideas. The drill will let you practise this exact line until it's second nature.

Most opponents won't find the best defence, and the statistics are brutally clear about Black's most common errors. Here are the top deviations you should celebrate seeing across the board: - 4...Ng8 (11,259 games, White scores 61.6%): This knight retreat is an inaccuracy that loses roughly 0.6 pawns. Black gives up the defender of e5 and wastes a tempo. Your plan: keep your centre pawns, develop quickly (d4, Nf3, Bc4), and enjoy a massive space and development edge. - 4...Nxe4 (3,495 games, White scores 71.4%): A real mistake costing about 1.9 pawns. Black grabs the e4-pawn but your knight on c3 is ready to recapture. After 5.Nxe4 Qe7 — and here your position is nearly winning. - 4...Ng4 (921 games, White scores 79.3%): The worst of the bunch, losing ~2.2 pawns. Black attacks the e5-pawn twice, but you have simple and crushing replies. Develop with tempo and Black's position collapses. - 4...Qe7 (298 games, White scores 77.2%) and 4...O-O (261 games, White scores 71.3%) are also poor choices that the drill will help you refute.

Your dream position after 4.fxe5 and a sensible Black reply looks like this: you've castled kingside, your d-pawn has advanced to d4, your knight is on f3, and your light-squared bishop is on c4 (or b5, depending on Black's moves). Black's pawn on c3 (after Bxc3 exchanges) can be a target later, but right now your lead in development and Black's king stuck in the centre are the real assets. If Black plays a non-Bxc3 move like 4...Ng8 or 4...Nxe4, you get to skip the doubled c-pawn pain entirely — pure profit. The engine line 5.Bxc3 dxc3 6.Nxe4 Qg4 shows that even in the main line, Black has to resort to awkward queen moves to avoid losing material. Your task in the drill is to find the punishing replies before the engine makes you pay for hesitation.