what is the worst chess opening on the first move

I think it is F3 as it exposes the king, doesn't fight for the center and blocks the G1 knight.

The worst first move according to the engine is b4. The Grob

f3

G4 the grob.

You might think so, but according to the engine, it is worse to play the grob.

Worst for white, or worst for black?

I used to think that 1. e4 f5 was the worst black can do on the 1st move, but engines are so anti-Grob that 1.h4 g5 gets the win over that, in the "bad opening" way. Even more than that is 1.d4 g5. I guess its better to develop the B instead of the R.

Switch that last one around, and 1. g4 d5 is probably the worst position for white after just 1 move.

Or if you mean the worst move for white followed by the worst one for black, double g-pawn should get that - 1. g4 g5

1.g4 f5

I have said something like this on a thread comparing the Barnes and the Grob some months ago, but my take is still: 1) Engines say the Grob is awfullest but for the practical player it makes Black play sharply and precisely or else the light-square power of a Bg2 and Pc4 and Qb3 as like as not can produce a great position for White. 2) Aside from getting one's opponent "out of book" I struggle to see what the Barnes accomplishes so even though the engines say it's better than the Grob it's hard to see how this applies in practice - Black can play "general principles" vague moves and still come out better. 3) 1. a4 and 1. h4 are also pretty pointless. 4) "One size fits nobody". If there's one thing Magnus Carlsen has taught us it's that the objective/engine evaluation is in practice often subordinate to the "playability" of the position.

I think kadas opening is bad

Fool mate opening

Barnes opening

Fool's mate

meadow hay mistake

"never play f4, or you'll always lose that game, no matter what opponent you're playing" Bobby Fishcher

That's the polish it's g4 that's the grob

Mega bongcloud