Grob Opening

 The Grob Opening is one of the 20 beginning moves for White in Chess. Like the King's Fianchetto Opening, White aims to place their bishop on g2 to control the long diagonal. However, the Grob is dubious because, instead of placing the g2 pawn on g3, White plays the weakening move g4 which sacrifices king safety to pursue a quick attack on Black's queenside. Despite this, g4 temporarily disables the option for Black to develop their kingside knight to f6. Due to its unorthodox nature, 99% of beginner or intermediate opponents you face will be unaware of the possible traps present in the Grob Opening. Below is a short list of pros and cons for the Grob:

Pros:

- Opponents may fall into traps

- Opponents may run short on time trying to solve the position

- Takes opponent out of conventional theory

- Prepares fianchetto of the light-squared bishop

- Disables the natural placement of Black's kingside knight

Cons:

- Makes casting less viable

- Ruins kingside pawn structure

- Overall weakens king safety

- Countered easily by advanced players

-  Sacrifices any vestige of a center control

- Traditionally sacrifices the g4 pawn

- King's Fianchetto is a much better alternative

Below are some variations of the Grob you could use to startle your opponents:

                                                  Fritz Gambit Declined

Double Grob

Hurst Attack

Shortspike Variation