Practised 16 positions on The Fork
Practised 8 positions on The Pin
Practised 8 positions on The Skewer
Practised 7 positions on Piece Checkmates II
Practised 6 positions on Double Check
Practised 8 positions on The Skewer
Practised 7 positions on Piece Checkmates II
Practised 6 positions on Double Check