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Puzzles organized by game phase
Tactical opportunities in the opening phase
Complex middlegame combinations
Precise endgame technique
King and pawn endgame puzzles
Rook endgame positions
Common tactical patterns
Attack two or more pieces simultaneously
Restrict a piece from moving by pinning it to a more valuable piece
Attack a valuable piece that must move, exposing another behind it
Move a piece to reveal an attack from another piece
Give up material for a stronger position or attack
Force a defending piece away from its protective duty
Lure an opponent's piece to a disadvantageous square
Checkmate patterns
Find the checkmate in one move
Find the checkmate in two moves
Find the checkmate in three moves
Exploit a back rank weakness for checkmate
Checkmate with a knight while the king is trapped by own pieces
Advanced tactical concepts
Put the opponent in a position where any move worsens their position
Trap an opponent's piece with no escape
Exploit a piece that has too many defensive duties
Move a piece to clear a square or line for another piece
Block a defensive line or communication between pieces