Pin
Fork
Skewer
Clearance
Interference
Files, Ranks & Diagonals
Mate in 1, 2, 3 Moves
Double Attack
Discovered Attack
Discovered Check
Double Check
Overloaded Piece
Removing the Defender
Back Rank Weakness
Pawn Promotion
Queen Sacrifice
Zugzwang
Attacking Castled King
Attacking Uncastled King
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