Practised 18 positions on 7th-Rank Rook Pawn
Practised 14 positions on Key Squares
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 4 positions on Zugzwang
Practised 2 positions on The Skewer
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 4 positions on Zugzwang
Practised 2 positions on The Skewer