Chessy
Play the King's Gambit Accepted: Cunningham Defense as Black
The King's Gambit Accepted: Cunningham Defense often asks Black to stay calm after grabbing the f-pawn. In this line, the position is already sharp, but the numbers show that you are not under immediate pressure. Your first job is to meet White’s initiative with accurate development and stay alert for the most common attempts to create quick threats. Use the drill below to practise the key position and learn the move the engine prefers.
Play the King's Gambit Accepted: Cunningham Defense against the engine
Free, no signup — you play black, the engine adapts to your level.
Jump into the drill and test your defence against White’s most common tries. Create a free account to track your progress and sharpen the line.
Create a free account →What the position is telling you
Stockfish rates this -0.27, a small edge for Black. That means you are slightly better here. The opening is still very playable for White, so you should not relax, but the balance is enough to justify confident, principled play.
The database at this exact position is also very busy: 1,704,539 games. White wins 47.3%, draws 2.8%, and Black wins 49.9%. In other words, this is a practical fighting position where good choices matter more than memorising long forcing lines.
The move the engine wants
The engine’s best move here is Bc4, and the main continuation given is Bc4 c6 Nc3 b5. That tells you the critical idea: develop actively and be ready to support the queenside expansion that often follows.
For Black, the lesson is simple. Do not waste time. Meet White’s rapid piece activity with your own development and keep your structure flexible enough to answer the bishop’s pressure on the diagonal.
White’s most common tries
White most often chooses Bc4, with 955,092 games, and that continuation scores 49.3% for White. The other major tries are d4, with 337,147 games and White scoring 41.5%; h4, with 283,163 games and White scoring 49.2%; Qe2, with 31,173 games and White scoring 46.6%; g3, with 27,338 games and White scoring 46.7%; and Be2, with 22,614 games and White scoring 47.2%.
That spread tells you the opening is not about one forced refutation. It is about knowing which ideas White uses most, then answering them with sound development and patience.
The mistakes to punish
The listed mistakes are clear and useful for training. d4 is an inaccuracy and loses about 0.5 pawns, with Bc4 being better. h4 is a mistake and loses about 1.2 pawns, again with Bc4 being better. Qe2 is also an inaccuracy and loses about 0.6 pawns, with Bc4 being better.
So when White reaches for one of those less accurate plans, you should stay disciplined and continue developing rather than overreacting. The point of the drill is to recognise which ideas are acceptable and which ones are giving you a better position right away.
Results across 1,704,539 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bc4 | 955,092 | 49.3% |
| d4 | 337,147 | 41.5% |
| h4 | 283,163 | 49.2% |
| Qe2 | 31,173 | 46.6% |
| g3 | 27,338 | 46.7% |
| Be2 | 22,614 | 47.2% |
Frequently asked questions
What is the King's Gambit Accepted: Cunningham Defense?
It is the opening after 1.e4 e5 2.f4 exf4 3.Nf3 Be7, with the reader playing Black. The position that follows is White to move, and Black has already chosen a solid, flexible setup.
Is Black doing well in this line?
Yes, but only by a little. Stockfish rates the position -0.27, which is a small edge for Black, and the database shows Black scoring 49.9% at this exact position.
What move should Black expect White to play most often?
White most often plays Bc4, with 955,092 games. That is also the move the engine prefers for White in this position, so you should know it well in the drill.
Which White moves are the biggest problems?
The listed mistakes are d4, h4, and Qe2. Each is weaker than Bc4, with h4 called a mistake and the others called inaccuracies, so you can gain from learning the right response patterns.
How many games feature the King's Gambit Accepted: Cunningham Defense?
Over 2 million Lichess games have reached the King's Gambit Accepted: Cunningham Defense position. White wins 47.3%, Black wins 49.9%, with 2.8% draws — based on real rated games.