Practised 18 positions on Checkmate Patterns I
Practised 16 positions on Checkmate Patterns II
Practised 8 positions on Opposition
Practised 5 positions on Desperado
Practised 5 positions on Undermining
Practised 5 positions on Counter Check
Practised 4 positions on Interference
Practised 8 positions on Opposition
Practised 5 positions on Desperado
Practised 5 positions on Undermining
Practised 5 positions on Counter Check
Practised 4 positions on Interference