Chessy
Play the Grob Opening: Grob Gambit, Basman Gambit
If you want to leave theory on move one and drag your opponent into a knife-fight from the very first moves, the Grob Opening (1.g4) is your weapon. The Grob Gambit, Basman Gambit variation pushes things further: after 1.g4 d5 2.Bg2 h5, White simply captures — 3.gxh5 — accepting an unusual pawn structure and offering Black a rook on the h-file. The engine rates the resulting position at -0.85, a clear edge for Black, so you are worse by a solid margin. But don't let the number scare you — the statistics below show that White still scores a winning percentage in practice. The drill below will teach you the concrete ways to keep the pressure on.
Play the Grob Opening: Grob Gambit, Basman Gambit against the engine
Free, no signup — you play white, the engine adapts to your level.
Play through the interactive drill below to practice the Grob Gambit, Basman Gambit position. Create a free account to track your progress and keep your sharp-
Create a free account →What You Are Fighting For — Bishops and Space
With 1.g4 and 2.Bg2 you develop the bishop to a long diagonal before committing a central pawn, and 3.gxh5 opens the h-file for your rook. The idea is to create asymmetrical, messy positions where your opponent can't rely on rote memory. Black's most popular reply is Rxh5 (704 games), taking the free pawn with the rook. That looks scary, but your light-squared bishop on g2 already eyes the centre and can become a monster if Black doesn't react carefully. Your main job is to find active moves that challenge Black's slightly better evaluated position — the engine's top suggestion is e5, striking at the centre immediately.
The Engine's Choice: Play e5 and Seize the Centre
Stockfish's best move after 3.gxh5 is e5, continuing with e5 d4 exd4 Qxd4. That sequence gambits another pawn (the e-pawn) to open lines and activate your pieces. After 4.e5 d4 5.exd4 Qxd4, you have traded a pawn for rapid development and an open board for your bishops and rook. Even though the evaluation still favours Black (-0.85), the practical statistics are encouraging: in the 102 games where White played e5, White scored 50.0% — that is a much better result than the raw evaluation would suggest. The move e5 is also a good choice because it avoids passive setups and forces Black to find accurate replies.
What the Statistics Reveal — Surprising Practical Chances
Across 1,138 games at this exact position, White wins 48.1%, draws 3.7%, and Black wins 48.2%. That is essentially a 50/50 split! This is remarkable given that the engine gives Black a clear advantage. The data shows that club players often mishandle the black side of the Basman Gambit. The most common Black responses and their White scores are: Rxh5 (704 games, White scores 49.3%), Nf6 (187 games, White scores 41.7%), e5 (102 games, White scores 50.0%), Bg4 (52 games, White scores 44.2%), c6 (25 games, White scores 56.0%), and Nc6 (19 games, White scores 36.8%). Notably, against the rare c6 (a solid, humble move), White scores a fantastic 56.0% — proving that your opponents will often play into your hands.
The One Mistake to Watch For — Black's Bg4 Trap
The most common mistake from this position is Black playing Bg4. According to the data, Bg4 is an inaccuracy that loses about 0.6 pawns of advantage compared to the better move e5. If your opponent pins a knight with 4...Bg4 before developing sensibly, they are drifting. This is a moment where understanding the concrete response is essential — and the drill below will train you to punish such inaccuracies. When Black plays Bg4, you want to continue with accurate development, not panic about the pin. The engine's best reply in that line is something you will discover by playing through the drill.
Results across 1,138 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Rxh5 | 704 | 49.3% |
| Nf6 | 187 | 41.7% |
| e5 | 102 | 50.0% |
| Bg4 | 52 | 44.2% |
| c6 | 25 | 56.0% |
| Nc6 | 19 | 36.8% |
Frequently asked questions
Is the Grob Gambit Basman Gambit a sound opening?
Objectively, no — Stockfish evaluates the position at -0.85, meaning Black is clearly better with best play. However, in practice across over 1,100 games at the club level, White still wins 48.1% of the time. It is a practical surprise weapon, not a theoretical equaliser.
What should White do after Black plays Rxh5?
Rxh5 is Black's most popular reply (704 games). White scores a solid 49.3% against it. The key is to stay active — the engine recommends pushing e5 to fight for central space and open lines for your pieces. Use the drill to see the concrete continuation.
Should I play e5 or something else after 3.gxh5?
The engine's top recommendation is e5, which leads to the line e5 d4 exd4 Qxd4. Statistically, e5 scores 50.0% for White across 102 games. It is an aggressive, principled choice that forces Black to find accurate moves.
Why does White have practical chances if the engine says Black is better?
The Basman Gambit creates unusual pawn structures and open h-files that many club players handle poorly. The evaluation assumes perfect play from both sides, but in real games Black often missteps. The drill helps you learn the specific patterns to exploit those mistakes.