Practised 9 positions on 7th-Rank Rook Pawn
Practised 8 positions on The Skewer
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 7 positions on X-Ray
Practised 7 positions on Interference
Practised 6 positions on Double Check
Practised 6 positions on Greek Gift
Practised 6 positions on Piece Checkmates I
Practised 5 positions on Clearance
Practised 5 positions on Undermining
Practised 5 positions on Counter Check
Practised 5 positions on Desperado
Practised 5 positions on Zwischenzug
Practised 4 positions on Zugzwang
Practised 8 positions on Opposition
Practised 8 positions on The Pin
Practised 7 positions on X-Ray
Practised 7 positions on Interference
Practised 6 positions on Double Check
Practised 6 positions on Greek Gift
Practised 6 positions on Piece Checkmates I
Practised 5 positions on Clearance
Practised 5 positions on Undermining
Practised 5 positions on Counter Check
Practised 5 positions on Desperado
Practised 5 positions on Zwischenzug
Practised 4 positions on Zugzwang