Tag relating to the Grob opening, an unorthodox chess opening beginning with 1.g4

The Grob opening was named after 'Henri Grob', a Swiss international master who frequently played this opening. Play in this opening usually involves tactics relating to the a8-h1 long diagonal, and games are usually wide-open, and a definite advantage resolves itself within around 20 moves.

Key themes in the Grob involve blasting open the long diagonal for the g2-bishop, or sacrificing the g4-pawn so that the b7-square is weakened for Black.

The Grob opening, with perfect play, is better for Black.