I'll give some comments which may be helpfull
Quote:I must admit when first I got acquainted with the Open Sicilian nomenclature, I got quite confused.
After some study I came to the following conclusions, which I hope are correct
Black defences:
- the Classical variation in the Dragon, Najdorf and Scheveningen begins with 6 Be2. However, 6 Be2 in the Classical Variation which arises after 1 e4 c5, 2 Nf3 d6, 3 d4 cxd4, 4 Nxd4, Nf6, 5 Nc3 Nc6 is called the Boleslavski variation
- the Sveshnikov is also known as the Lasker-Pelikan
- the Kan variation is also known as the Paulsen
-All the Be2 variations dont have a general name, except for in the classical, where it has to be followed by a black e5 as otherwise it transpose to another variation (eg e6 is a scheveningen).
-Officially the Pelikan was the variation with 1 e4 c5, 2 Nf3 d6, 3 d4 cxd4, 4 Nxd4, Nf6, 5 Nc3 e5, but nowadays it usually refers to the subvariation without b5 but with Be6. All others are usually (though on a nitpick level incorrect) called the Sveshnikov
-Not sure about that one, I thought the Paulsen was with 4 Nc6 which uis the same as the Taimanov,but Mnb can prolly give you a complete answer.
Quote:White variations:
- the Sozin aka as the Fischer Attack, starts with 6 Bc4 and mostly involves K-side castling
- the Fischer-Sozin with Q-side castling becomes the Velimirovic
- against the Dragon, the Velimirovic is called the Yugoslav Attack
- the Velimirovic-Yugoslav can be played against the Dragon, Najdorf, Scheveningen and Classical
- roughly speaking, the English Attack is the Velimirovic-Yugoslav without 6 c4
-Sozin is after 1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 and now either a6/e6/Nc6 Bc4. The variation with 5 .. a6 6 Bc4 is also known as the Fischer attack, while the variation after 5 .. Nc6 6 Bc4 and white not playing Qe2 later is aka the classical Sozin. You are entirely right on both involving kingside castling.
-2nd point is entirely correct.
-Yes, but keep in mind that the setup against the dragon is structurally different in nature. In the dragon you'd play Be3, Qd2 and H-bomb the kingside. With the Velimirovic the queen goes to e2. It is also not the best way to play against a Sozin Najdorf set-up due to black not playing Nc6 (often Nd7-c5 gets nasty).
-Yes that is basically true, though there will be many now starting yelling about the differences
I'd suggest not getting into the Velimirovic attack yet, as it is very complex and only really good against the classical sicilian. The classical Sozin (or Fischer attack) is easier to play and is far more akin to e4-e5 openings (especially Italian main lines, but also the scotch in some variations). Against the dragon the Yugoslav is indeed very good and even though those variations count for many posts on this forum about a move 25 deviation it is quite easily understood in conceptual terms (As Fischer described it "playing against the dragon is a simple question of prying open the king's rook file and then sac, sac ... mate!").