1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. h1g1 A modern, interesting, and combative move to face the Najdorf Defense. The idea is to advance the pawn to g4, and White doesn't mind losing castling rights on the kingside, as the king goes the other way. 6... h7h5 [%c_effect h5;square;h5;type;Interesting;persistent;true] A radical way of preventing g2-g4. One of the computer's contributions to opening theory is to show that the move h5 in the Sicilian is much better than previously thought. 7. c1e3  7... g7g6 