Practised 10 positions on Discovered Attacks
Practised 7 positions on Checkmate Patterns IV
Practised 6 positions on Double Check
Practised 5 positions on Zwischenzug
Practised 1 position on X-Ray
Practised 6 positions on Double Check
Practised 5 positions on Zwischenzug
Practised 1 position on X-Ray