1 x Introduction (1.00 avg depth)
51 x Nimzo-Indian - Rubinstein (17.90 avg depth)
50 x Nimzo-Indian - Kasparov (18.26 avg depth)
50 x Nimzo-Indian - Classical (17.52 avg depth)
50 x Nimzo-Indian - f3 and a3 (16.82 avg depth)
51 x Slav - Chebanenko (17.61 avg depth)
50 x Slav - Exchange (16.26 avg depth)
50 x Slav - Classical (17.44 avg depth)
50 x Slav - Slow Slav (17.66 avg depth)
50 x Semi Slav - Botvinnik (18.08 avg depth)
50 x Semi Slav - Meran (18.34 avg depth)
50 x Semi Slav - Moscow (17.78 avg depth)
50 x Semi Slav - Anti-Meran (18.30 avg depth)
51 x QGD - Cambridge Springs (16.41 avg depth)
50 x QGD - Exchange (17.12 avg depth)
50 x QGD - Mainline (17.42 avg depth)
50 x QGD - Ragozin (17.54 avg depth)
51 x QGA - 3. e4 (15.29 avg depth)
50 x QGA - 3. e3 (15.96 avg depth)
51 x Tarrasch Defence (17.67 avg depth)
50 x Semi-Tarrasch Defence (19.84 avg depth)
