Practised 7 positions on X-Ray
Practised 5 positions on Zwischenzug
Practised 4 positions on Zugzwang
Practised 2 positions on Interference
Practised 1 position on Overloaded Pieces
Practised 4 positions on Zugzwang
Practised 2 positions on Interference
Practised 1 position on Overloaded Pieces