1. d2d4  1... g8f6  2. c1g5  2... d7d5  3. b1d2 The Torre Attack is a dangerous weapon for  White. It was once a favourite opening of the ninth world champion Tigran  Petrosian. 3... b8d7  4. g1f3  4... h7h6  5. g5h4  5... c7c5  6. e2e3  6... e7e6  7. c2c3  7... f8e7  8. f1d3  8... d8c7  9. d1e2  9... e8g8 