[%c_effect g8;square;g8;type;GreatFind;persistent;true] Now the position is a nightmare for White, who is attacked without mercy.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. c1g5 Once 6.Bg5 had the undisputed status of being the main line against the Najdorf Variation. This predilection is now shared with the English Attack, starting with 6.Be3. But the old move remains one of the most dangerous weapons at White's disposal. If you're going to play the Najdorf as Black, it's good to start your studies here: in these lines, one careless move is fatal. 6... e7e6  7. f2f4  7... h7h6  8. g5h4  8... b8d7  9. d1f3  9... e6e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] In the early days of the Najdorf, such a move would have been unthinkable—moving a pawn again instead of developing the bishop on f8,  inviting the white knight to jump to the dangerous square on f5. But computers have shown that in chess, almost anything is possible. 10. f4e5 [%c_effect e5;square;e5;type;Inaccuracy;persistent;true] 10... d7e5  11. f3e2  11... f8e7  12. e1c1  12... c8g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] Taking the opportunity to gain time in development. It's already clear that something went wrong for White in the opening. 13. d4f3  13... a8c8  14. h2h3  14... g4f3  15. g2f3  15... c8c3 [%c_effect c3;square;c3;type;GreatFind;persistent;true] A typical exchange sacrifice in the Sicilian Defense. This is one of those rare sacrifices that you can play without thinking. 16. b2c3  16... d8a5  17. e2e3  17... a5a2 Only now are we in uncharted territory. 18. h1g1 