Practised 10 positions on Discovered Attacks
Practised 7 positions on X-Ray
Practised 7 positions on Interference
Practised 5 positions on Zwischenzug
Practised 1 position on Zugzwang
Practised 7 positions on Interference
Practised 5 positions on Zwischenzug
Practised 1 position on Zugzwang