1 x 1. Introduction (1.00 avg depth)
127 x 2. Elimination Of The Defence (3.62 avg depth)
81 x 3. Double Attack (3.05 avg depth)
51 x 4. Discovered Attack (3.22 avg depth)
38 x 5. Skewer (3.53 avg depth)
64 x 6. Pin (3.13 avg depth)
73 x 7. Trapping A Piece (3.03 avg depth)
98 x 8. Promotion (4.22 avg depth)
74 x 9. Draw (4.97 avg depth)
184 x 10. Mate (4.11 avg depth)
107 x 11. Defending (3.74 avg depth)
154 x 12. Mix (3.86 avg depth)
