trying to control the d5-square. The most common move is then 8.f3, allowing White to play Qd2 next move. If White had tried to play 8.Qd2, then Black could respond with 8...Ng4. But if White plays 7.Nf3, then Black's main choices are 7...Be7 and 7...Qc7. Trying to transpose to the Scheveningen by playing 6... e6. White can either opt for the standard English Attack by playing 7.f3 or try the even sharper Hungarian Attack (also known as Perenyi Attack) by playing 7.g4. The knight move: 6... Ng4. White continues: 7.Bg5 h6 8.Bh4 g5 9.Bg3 Bg7, but the nature of this position is quite different from the ones arising after 6...e6 and 6...e5, so sometimes White tries to avoid the knight jump by playing 6.f3 instead of 6.Be3. However, aside from eliminating the option to play the Hungarian Attack mentioned above, it gives Black other possibilities such as 6...Qb6 and 6...b5. The Verbeterde List approach: 6... Nbd7. The idea of this move is to get into the English Attack while avoiding the Perenyi Attack. 7.g4 is less dangerous now because with 6...Nbd7 Black is more flexible as the bishop on c8 can attack g4 now and the knight on d7 can jump to interesting squares. Fischer–Sozin/Lipnitzky Attack: 6.Bc4 Introduced by Veniamin Sozin in the 1930s, this received little attention until Fischer regularly adopted it, and it was a frequent guest at the top level through the 1970s. White plays 6. Bc4 with the idea of playing against f7, so Black counters with 6...e6 7.Bb3 b5. The Sozin has become less popular because of 7...Nbd7 where Black intends to follow up with ...Nc5 later. It is possible to avoid the 7...Nbd7 option with 7.0-0, but this cuts out the aggressive possibility of castling long. Classical/Opocensky Variation: 6.Be2 Because of the success of various players with these variations, White often plays 6. Be2 and goes for a quieter, more positional game, whereupon Black has the option of transposing into a Scheveningen Variation by playing 6...e6 or keeping the game in Najdorf lines by playing 6...e5. Another option is to play 6...Nbd7, in the spirit of The Verbeterde List; it is for this reason that this variation is called The Verbeterde List Unlimited. Amsterdam Variation: 6.f4 Some lines include: 6...e5 7.Nf3 Nbd7 8.a4 Be7 9.Bd3 0-0 6...Qc7 7.Bd3 6...e6 7.Be2 GM Daniel King recommends 6...g6 against the Amsterdam Variation, leading to a more defensive