Practised 18 positions on Checkmate Patterns I
Practised 14 positions on Checkmate Patterns II
Practised 7 positions on Interference
Practised 5 positions on Zwischenzug
Practised 4 positions on Zugzwang
Practised 7 positions on Interference
Practised 5 positions on Zwischenzug
Practised 4 positions on Zugzwang