Practised 18 positions on Checkmate Patterns III
Practised 11 positions on Key Squares
Practised 6 positions on Double Check
Practised 6 positions on Attraction
Practised 1 position on Piece Checkmates II
Practised 6 positions on Double Check
Practised 6 positions on Attraction
Practised 1 position on Piece Checkmates II