Practiced 16 positions on The Fork
Practiced 12 positions on Opposition
Practiced 11 positions on 7th-Rank Rook Pawn
Practiced 11 positions on Key Squares
Practiced 10 positions on Discovered Attacks
Practiced 10 positions on Overloaded Pieces
Practiced 8 positions on The Skewer
Practiced 8 positions on The Pin
Practiced 7 positions on Interference
Practiced 6 positions on Double Check
Practiced 5 positions on Zwischenzug
Practiced 4 positions on Zugzwang

Practiced 8 positions on Piece Checkmates II

Practiced 18 positions on Checkmate Patterns III
Practiced 18 positions on Checkmate Patterns I
Practiced 15 positions on Checkmate Patterns IV
Practiced 8 positions on Knight & Bishop Mate
Practiced 6 positions on Piece Checkmates I
Practiced 6 positions on Greek Gift
Practiced 4 positions on Piece Checkmates II