13 x Typical Tricks (2.77 avg depth)
11 x Other Simple Tricks (2.55 avg depth)
25 x White attacks on the Kingside (3.40 avg depth)
14 x Black attacks on the Queenside (3.14 avg depth)
14 x White attacks Black's King in the Center (3.86 avg depth)
11 x Black counters in the Center (3.55 avg depth)
12 x Najdorf Structure: White Pawn on e4 (2.67 avg depth)
11 x Najdorf Structure: White Pawn on d5 (4.00 avg depth)
10 x White pushes e5 (4.20 avg depth)
11 x Typical Sacrifices: Rxc3 (3.91 avg depth)
8 x Typical Sacrifices: Bd5, Nd5, or Nf5 (3.75 avg depth)
11 x Typical Sacrifices: Nxe6 or Bxe6 (3.18 avg depth)
10 x Typical Sacrifices: Bxb5 or Nxb5 (3.80 avg depth)
27 x Miscellaneous (3.81 avg depth)
12 x Legends (4.92 avg depth)
21 x Test 1 (2.29 avg depth)
20 x Test 2 (3.30 avg depth)
20 x Test 3 (2.90 avg depth)
20 x Test 4 (4.00 avg depth)
9 x Brainteasers (6.33 avg depth)
275 x Reference Lines (35.17 avg depth)