Which opening is which?

In response to posts 12 and 13, if chess.com really calls those two different openings, it just proves my point that a drunk set up the opening names on chess.com. Just like how they put in non-existent names, like the Sicilian Defense, "French Variation". There is no "French Variation". The French people have nothing to do with the sorry move that the Sicilians came up with. The French people came up with 1...e6 from a team match in the 1830s against the Brits and won with the Black pieces.

When one opening leads to the same position as another opening, it is called a "Transposition".

1.e4 d5 2.exd5 Nf6 3.c4 c6 4.d4 cxd5 5.Nf3 is NOT a Scandinavian - It is a Caro-Kann. Just because you got there via a different move order does not change the fact that it is a Panov-Botvinnik Attack, a variation of the Caro-Kann. In some cases, this may wind up transposing again to the Nimzo-Indian Defense!

Another prime example is 1.c4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.e4 is a Sicilian Accelerated Dragon, Maroczy Bind, not an English Opening.

There are numerous instances of this.

Who will bring up the next one?

You know, the puzzle to guess the opening.

Yes, and what I am saying is #7 does not have 2 answers like 12 and 13 argue.

If I gave you the following position:

The answer would be the Sicilian Accelerated Dragon, Maroczy Bind.

It does not matter whether this came via 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 or if this came via 1.c4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.e4.

It doesn't make a hill of beans that you opened 1.c4, this position came via a Sicilian Accelerated Dragon Maroczy Bind, either directly via 1.e4 or by transposition via 1.c4. It is no longer an English Opening, just like 1.c4 e6 2.Nf3 d5 3.g3 is a Reti, not an English.

So posts 12 and 13 are not 2 different openings. They are the same opening. One of those is the answer to #7.

Dragon - 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 (c4 can no longer be played) g6

Accelerated Dragon - 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 (5.Nc3 is possible as well, but not forced) Bg7 and now 6.Be3 or 6.Nc2.

The Accelerated Dragon avoids the Yugoslav Attack because of the following:

The downside though of the Accelerated Dragon versus the regular Dragon is that it allows the Maroczy Bind (5.c4), clamping on the d5-square. Not possible in the normal Dragon. White would have to play the Prins Variation (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3) in order to get c4 in, but then 5...e5 6.Nb3 leaves the Knight oddly placed.

That is really complicated.

Guess which opening is this.

It is the Budapest Gambit.

Which opening is this now?

I think the Cochrane is more popular because I played it twice.

You can also check it in explorer if if you need help.

And you're right, it is a Scotch.

Because you are the one that never heard of the Maroczy Bind, and also you said you thought Dragon, not Accelerated, and so was explaining to you the differences between them and why one might play one over the other. Without the illustration, some might question "Why not just play the Dragon if the Accelerated allows this thing called the Maroczy Bind that the normal dragon does not?"

So since you showed confusion between the two, I explained the differences and showed the pros and cons for both. The Dragon allows the Yugoslav Attack, the Accelerated allows the Maroczy Bind, and they each prevent what the other one allows.