Practised 7 positions on X-Ray
Practised 4 positions on Zugzwang
Practised 2 positions on Zwischenzug
Practised 2 positions on Interference
Practised 1 position on The Skewer
Practised 2 positions on Zwischenzug
Practised 2 positions on Interference
Practised 1 position on The Skewer