3 x 1. Introduction (1.67 avg depth)
53 x 2. Safety and Counting (2.79 avg depth)
37 x 3. Trapped Pieces (1.78 avg depth)
48 x 4. Pins (1.90 avg depth)
20 x 5. Skewers (2.05 avg depth)
18 x 6. Double Threats (2.11 avg depth)
28 x 7. Double Attacks (1.64 avg depth)
27 x 8. Knight and Pawn Forks (2.11 avg depth)
64 x 9. Removal of the Guard (2.22 avg depth)
45 x 10. Discovered Attack and Discovered Check (2.56 avg depth)
21 x 11. Promotion and Underpromotion (2.86 avg depth)
19 x 12. Other Tactical Motifs (3.37 avg depth)
68 x 13. Checkmates (2.84 avg depth)
30 x 14. Opening Sequences (2.80 avg depth)
34 x 15. Defensive Tactics (2.12 avg depth)
78 x 16. 78 Problems on 64 Squares (2.83 avg depth)
7 x 17. The Seeds of Tactical Destruction (2.57 avg depth)
15 x 18. Is there a win? (2.20 avg depth)
