Chessy
King's Gambit Accepted: Mason-Keres Gambit
After 1.e4 e5 2.f4 exf4 3.Nc3, White has chosen a sharp way to keep the game lively and ask Black immediate questions. The key idea is simple: develop quickly, stay alert, and be ready for forcing play because Black can check early and make you react. This drill lets you practise the critical position where Black is to move, so you can learn what to expect and how to handle the main replies without guessing over the board.
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Create a free account →What the position is really about
This opening leads to a forcing middlegame very quickly. White has gambit play and active pieces, but Black can strike with forcing checks and try to keep the extra pawn while slowing your development.
The practical lesson is to stay organised. In this structure, piece activity and king safety matter more than grabbing material back too soon. If you lose time, Black’s initiative can become very annoying.
What the engine likes here
Stockfish rates this -0.49, a small edge for Black. That means you are slightly worse here.
The engine’s best move is Qh4+ , and the listed continuation is Qh4+ Ke2 Qe7 Ke1. For the drill, that means you should be ready for a forcing line and not panic when Black checks early.
What club players actually play
The database at this exact position shows a wide range of replies, so you are not dealing with one forced road. Across 67,185 games, White wins 50.1%, draws 3.1%, and Black wins 46.9%.
The most-played continuations are Nc6, Qh4+, d6, Nf6, Bb4, and g5. That makes this a very practical training position: you can learn the main defensive ideas by facing the moves that appear most often, not just the engine’s top choice.
Common mistakes to punish or avoid
Some moves here are already flagged as mistakes, so the drill is especially useful for recognising them fast.
- Nf6 is a mistake and loses about 1.1 pawns; better was Qh4+
- Bb4 is a mistake and loses about 1.2 pawns; better was Nc6
- g5 is a mistake and loses about 1.4 pawns; better was Nc6
If you are White, these are the kinds of errors you want to notice immediately so you can keep the initiative alive.
Results across 67,185 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nc6 | 13,219 | 51.3% |
| Qh4+ | 10,781 | 40.4% |
| d6 | 7,849 | 52.1% |
| Nf6 | 7,192 | 53.9% |
| Bb4 | 5,446 | 50.2% |
| g5 | 5,331 | 53.0% |
Frequently asked questions
Is the King's Gambit Accepted: Mason-Keres Gambit good for White?
It is an ambitious gambit line, but this exact position is not fully comfortable for White. Stockfish gives -0.49, which is a small edge for Black, so you should expect to work for your activity rather than assume an opening advantage.
What is the main move to know in this position?
The engine’s best move is Qh4+. That is the forcing idea you need to meet in the drill, and it leads to the continuation Qh4+ Ke2 Qe7 Ke1.
What are the most common replies for Black?
The most-played continuations are Nc6, Qh4+, d6, Nf6, Bb4, and g5. Learning these helps because they cover the most likely practical defences you will see in real games.
Which moves are considered mistakes here?
Nf6, Bb4, and g5 are all marked as mistakes in this position. Each one loses material according to the engine, so they are useful targets for White in the drill.
How many games feature the King's Gambit Accepted: Mason-Keres Gambit?
Over 67K Lichess games have reached the King's Gambit Accepted: Mason-Keres Gambit position. White wins 50.1%, Black wins 46.9%, with 3.1% draws — based on real rated games.