13 x Introduction (6.38 avg depth)
37 x Chapter 1) Basic Knowledge (6.92 avg depth)
46 x Chapter 2) Prophylaxis (4.72 avg depth)
52 x Chapter 3) Forcing Play (6.65 avg depth)
20 x Chapter 4.1) Pieces: Anti-Development (2.85 avg depth)
43 x Chapter 4.2) Pieces: Development (2.37 avg depth)
45 x Chapter 4.3) Pieces: Improvement (3.73 avg depth)
31 x Chapter 4.4) Pieces: Endgame (4.81 avg depth)
45 x Chapter 5) Pawn Moves (4.58 avg depth)
41 x Chapter 6.1) Practice: Puzzles (4.51 avg depth)
48 x Chapter 6.2) Practice: Games (7.79 avg depth)