Practised 18 positions on Checkmate Patterns I
Practised 11 positions on Key Squares
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 8 positions on The Skewer
Practised 6 positions on 7th-Rank Rook Pawn
Practised 6 positions on Piece Checkmates I
Practised 4 positions on Double Check
Practised 1 position on Zugzwang
Practised 1 position on Piece Checkmates II
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 8 positions on The Skewer
Practised 6 positions on 7th-Rank Rook Pawn
Practised 6 positions on Piece Checkmates I
Practised 4 positions on Double Check
Practised 1 position on Zugzwang
Practised 1 position on Piece Checkmates II