[%c_effect d3;square;d3;type;Interesting;persistent;true] A creative choice of square for the queen. The most popular is 10.Qd2.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. h2h3  6... e7e5  7. d4b3 When people started trying 6.h3 against the Najdorf, the idea was to take the knight to e2 and then try to play g4-Ng3. Currently two other withdrawals are also popular, either 7.Nb3 or 7.Nf3. 7... c8e6  8. c1e3  8... b8d7  9. g2g4 If the position had originated from the English Attack (6.Be3 or 6.f3), then we would have almost this same position on the board with the difference that there would be a pawn on f3 and not on h3. Who has the advantage when we change this pawn for the one on h3 $2 Like almost everything in life, there is a good side and a bad side. In the case of the game, the queen has the option of being developed on f3 and the bishop has the option of being developed on g2 without a pawn in front of it. On the other hand, the plan with h4-g5 becomes less attractive. 9... h7h6 