Chessy
Play the Italian Game: Blackburne-Kostić Gambit d3 as Black
You've just played 3...Nd4, the Blackburne-Kostić Gambit, and after 4.d3 your knight captures on f3. Now you wait — what will White do with their pawn? Most opponents recapture with the queen (Qxf3), keeping a small edge, but here's the secret: over 5,800 games, White has played gxf3 instead, scoring just 47.1%. That means you win more than half the time when they bite with the pawn. The drill below puts you in Black's seat to punish that mistake and navigate the main line.
Play the Italian Game: Blackburne-Kostić Gambit: d3 against the engine
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Play the position against our adapting engine now — practise punishing gxf3 and navigating the main line with Qxf3. Create a free account to track your progress
Create a free account →What You're Fighting For
The Blackburne-Kostić Gambit is a tricky weapon. By jumping your knight to d4 on move three and then trading it on f3, you sacrifice a tempo and surrender the bishop pair — on purpose. Your goal is to rip open White's kingside or, if they recapture with the pawn (gxf3), to leave their king stranded in the centre behind a shattered pawn shield. The engine gives this position +0.49, a narrow edge for White. That means you are slightly worse in the main line, but the position is alive and imbalanced. If your opponent doesn't know the precise reply, you can turn the tables fast.
The Critical Moment: White's Third Recapture
The position after 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 4.d3 Nxf3+ is the tabiya. Here White has four legal captures, but only one is good. Across 369,205 games in the Lichess database, 363,372 games saw Qxf3 — the engine's best move and the only one that keeps White's advantage. The other three are all mistakes you need to know how to exploit: gxf3 (an inaccuracy, losing ~0.5 pawns), Kf1 (a blunder, losing ~4.9 pawns), and Ke2 (also a blunder, losing ~4.9 pawns). When White plays gxf3, your score jumps to 52.9% wins — you are the favourite. When they play Kf1 or Ke2? White scores a pitiful 5.6% and 0.0% respectively. Those are practically resignable.
Punish the gxf3 Mistake
If White takes with the pawn (gxf3), here is your plan. First, develop your kingside: ...Nf6 comes immediately, attacking e4 and preparing to castle. Then push ...d6 to secure the centre and open lines for your light-squared bishop. White's king is stuck in the middle because the g-pawn is gone — you can later target the f3 weakness with ...Qh4+ or ...Bg4, depending on how they react. Do not rush to grab pawns; develop with threats. Your lead in development and White's wrecked kingside give you active play long into the middlegame. The engine confirms that White should have played Qxf3; after gxf3 you are the one pressing.
What the Statistics Tell Us
The numbers from 369,205 games at this exact position tell a clear story. White wins 52.3% overall, draws 5.3%, and Black wins 42.5%. That 52.3% is almost entirely carried by the Qxf3 line. Look at the split: when White plays Qxf3 (363,372 games), their score stays at 52.3% — no better than the baseline. But when they play gxf3 (5,802 games), White's score drops to 47.1%, meaning Black wins the majority. And in the tiny samples where White tries a king move — Kf1 (18 games) or Ke2 (13 games) — White's score collapses to 5.6% and 0.0%. The takeaway: the Blackburne-Kostić Gambit is a practical weapon precisely because so many White players take the bait with the wrong recapture.
Results across 369,205 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Qxf3 | 363,372 | 52.3% |
| gxf3 | 5,802 | 47.1% |
| Kf1 | 18 | 5.6% |
| Ke2 | 13 | 0.0% |
Frequently asked questions
Is the Blackburne-Kostić Gambit sound for Black?
The engine gives Black a slight disadvantage (+0.49) after White's best reply Qxf3, but it is fully playable at club level. The real value of this gambit is practical: many White players recapture with gxf3, which is an inaccuracy that gives Black the better chances.
What should Black do after White plays gxf3?
Develop quickly with ...Nf6, attacking e4, and follow up with ...d6 to open lines. Your plan is to exploit White's exposed king and the weak f3-pawn. Do not grab material recklessly — focus on piece activity and threats like ...Bg4 or ...Qh4+.
Why is Qxf3 better than gxf3 for White?
After Qxf3, White keeps a solid pawn structure and maintains a small edge thanks to the bishop pair. After gxf3, White's kingside is shattered, the king has no safe shelter, and Black gets easy development and attacking chances.
What happens if White plays Kf1 or Ke2?
Both are blunders that lose roughly 4.9 pawns in evaluation. In the Lichess database, White scores just 5.6% after Kf1 and 0.0% after Ke2. Black gets a winning attack essentially for free — develop and checkmate.
How many games feature the Italian Game: Blackburne-Kostić Gambit: d3?
Over 369K Lichess games have reached the Italian Game: Blackburne-Kostić Gambit: d3 position. White wins 52.3%, Black wins 42.5%, with 5.3% draws — based on real rated games.