17 x 1. Introduction (10.65 avg depth)
27 x 2. A New Idea against the Critical 9 ... Bc5 (19.78 avg depth)
6 x 3. An Interesting Alternative in the Old Main Line (17.67 avg depth)
15 x 4. The Exchange 9...Nxf3+ (17.87 avg depth)
10 x 5. Going back with 9... Nc6 (17.00 avg depth)
11 x 6. The flexible 9... Ne7 (16.00 avg depth)
12 x 7. The rare but playable 9...Rc8 (16.83 avg depth)
5 x 8. 9th moves Odds and Ends (14.60 avg depth)
14 x 9. Illustrative Games (41.14 avg depth)
