Chess Opening Theory/1. e4/1...c5/2. Nf3/2...d6/3. d4/3...cxd4/4. Nxd4/4...Nf6/5. Nc3/5...g6/6. Be3/6...Bg7/7. f3/7...O-O/8. Qd2/8...Nc6/9. Bc4/9...Bd7/10. O-O-O/10...Rc8/11. Bb3

= Sicilian Defense, Dragon, Old Line = White correctly moves their bishop out of the c8 rook's line of fire with Bb3, keeping watch over Black's kingside. Now pawn attacks begin on both sides, and speed and tempi are very important in these such attacks.