Grob Opening
You play White · 5 variations
Mixed practice
The machine picks a different variation every time.
Take a quiz
10 positions: find the next theory move in each. No take-backs, no hints.
Main variations · 2
Other variations · 3
What is the Grob Opening?
The Grob Opening starts with 1.g4. It is named after the Swiss player Henri Grob, who played it extensively. White grabs space on the kingside and prepares Bg2, so the bishop aims down the long diagonal at b7 and, together with c4, at d5. The usual reply is ...d5, and after 1.g4 d5 2.Bg2 White is already offering the g4 pawn in the Grob Gambit. The character is sharp and provocative: White weakens the squares around the future castled king in exchange for quick queenside pressure. Most strong players regard it as dubious, so it lives as a surprise weapon, especially in blitz and bullet, where opponents who have never seen it can drift into trouble.
Main ideas and plans
If Black takes the pawn, 1.g4 d5 2.Bg2 Bxg4 3.c4 is the Fritz Gambit, hitting d5 and b7 at once. White follows with Qb3, Nc3 and sometimes cxd5 to open the long diagonal. Black's sharp answer is the Romford Countergambit, 1.g4 d5 2.Bg2 Bxg4 3.c4 d4 4.Bxb7 Nd7 5.Bxa8 Qxa8, giving up the exchange to put the queen on the long diagonal against the rook on h1 and White's loose kingside. White can also keep the pawn with 1.g4 d5 2.h3; Black's most respected reply there is the Keene Defense, 1.g4 d5 2.h3 e5 3.Bg2 c6, a broad center that blunts the bishop.
Other paths are wilder. In the Zilbermints Gambit, 1.g4 d5 2.e4 dxe4 3.Nc3, White gives a central pawn for fast development. After 1.g4 e5 2.Bg2 d5 3.c4, the Hurst Attack, White again hits the center along the diagonal. Typical White plans are pressure on b7 and d5, a later g5 to kick a knight from f6, and a flexible king, sometimes castled long. Black's best set-ups simply build a solid center with ...c6 and ...e5 and shut the bishop out.
Who is it for?
The Grob suits players who like to drag opponents out of book and are happy in irregular, tactical positions, mainly in fast games. It is a poor choice for long classical games, because a well-prepared opponent who builds a center and attacks your weakened kingside gets the better game. Learn the Fritz Gambit and the Romford Countergambit first, since they decide most games after 1.g4 d5, and never combine g4 with an early f3 or f4: 1.g4 e5 2.f3 Qh4 is already mate.