which is the strongest opening in chess


There isn't a single "strongest" opening in chess, as the effectiveness of an opening depends on various factors.

Speaking as someone who as been playing the Royal game since I was 14 when I first walked into a chess local chess club, now aged 67 I can say .... THERE IS NO SUCH THING AS THE STRONGEST CHESS OPENING, THERE ARE HOWEVER WEAK CHESS OPENINGS?! These are openings that neglect good development harmony of one's pieces!! So stick to good solid openings such as 1.d4 or 1e4 and white as black against 1 e4 use either 1...e6 French or 1...c6 Caro kannada and v 1.d4 choose 1.. e6 followed ...d5 deveope sensibly and quickly clear your back rank ... study the old masters how they played and avoid the silly openings they won't help your games!!?
Sorry no half decent player will agree on the grob being a decent choice opening that benefit a players genuine progress in chess!!
Sorry no half decent player will agree on the grob being a decent choice opening that benefit a players genuine progress in chess!!
While it is true that advanced players don't often play the Grob, the reason actually lies in the mind-numbing variations the opening brings. It could take a Grandmaster years to study and understand one variation of the Grob. For example, I am in the process of studying the 3.c4 Grob. I have only studied the 3...Bxg4 variation, yet I win almost every game that begins with the Grob.
I have found that players of the group on a whole usually only play blitz or quick play, at what I call the more pure level the classical over the board level it stands little chance against 1800- 2200+ at a local chess Congress a 1920 Elo played the grob against G.M Mark Hebden. I recall even though 5 years ago 1 g4, e5 2.h3, and Hebden with a big smile played ...h5!? Hebden a seasoned G.M who plays congresses week in week out won quite easily in 26 moves!! Point is Grob is OK in short time controls such as Blitz. Quick play but in slower classical time controls the grobs weaknesses are taken advantage of!!
The Grob has no weaknesses. Rather, it exposes them in such beauty and elegance that no other opening will ever come close.
Ruy Lopez, most played at top level and for good reason.
Ruy Lopez is trash compared to the Grob