There was thread about it Thread 124133
I've not looked at the vids. Nor do I have the book Skeets mentioned.
Yeah 3...d5 but this is just about as far as most people know
it's that off beat it tends to get ignored.
To be honest it's all I know about this from both sides.
Rarely played it, (twice?), never met it.
There are some players who swear by it.
If you know all the wrinkles and the twists and turns then the Black
player has a wide open game which he has to unthread OTB.
Can be a good surprise weapon.
Any good player who replies 1...e5 has got his lines v the Lopez, KG,
Guico, Scotch, Vienna and possibly The Danish.
The Poziani? "You just played 3....d5."
It's not quite as simply as that.
If Paul means 2.c3 which I think is called the Lopez Opening,
(needs a new name I'm thinking). Or the Centre Opening.
All I know is again 2....d5 as 3.exd5 Qxd5 is a dodgy Scandinavian.
(I just Wiki'd it - pasted below )
The Lopez Opening or MacLeod Attack is a chess opening
characterized by the moves
1. e4 e5
White's second move prepares to push a pawn to d4,
establishing a strong center.
Play can potentially transpose to other openings,
most likely the Ponziani Opening or the Göring Gambit
in the Scotch Game.
However, in Unorthodox Chess Openings,
Eric Schiller states that the opening is too slow,
and that Black can respond vigorously with 2...d5!
to eliminate transpositional possibilities and solve
all of his opening problems, as after
1.e4 e5 2.c3 d5! 3.exd5 Qxd5
there is no 4.Nc3 to chase the queen away and gain a tempo.
(I told you it was a dodgy Scandinavian).
So Schiller says it's no good - therefore it is perfectly playable (Tartakower).