3322 real-game puzzles in this collection
What is a pin?
A pin freezes an enemy piece on a line because moving it would expose a more valuable piece behind it. An absolute pin, against the king, makes moving the pinned piece illegal; a relative pin merely makes it losing.
How to spot it
Trace every bishop, rook and queen line through enemy pieces toward the king or queen. When two enemy units share a line with your long-range piece, a pin is on the board or one move away.
What this set trains
Pin puzzles teach you to pile pressure on an immobilized target and to notice when a defender that looks solid is actually frozen.
Foundation: 347Developing: 701Challenging: 745Advanced: 1529
foundation
Rating 889
advantageendgamemaster
foundation
Rating 891
advantageendgamepin
foundation
Rating 893
matemateIn1middlegame
foundation
Rating 899
crushingmiddlegamepin
foundation
Rating 900
crushingmiddlegamepin
foundation
Rating 902
crushingendgamemaster
foundation
Rating 904
advantagemiddlegamepin
foundation
Rating 907
endgamematemateIn2
foundation
Rating 908
advantagemiddlegamepin
foundation
Rating 908
crushingmiddlegamepin
foundation
Rating 908
matemateIn2middlegame
foundation
Rating 909
endgamelongmate
foundation
Rating 909
crushingendgamepin
foundation
Rating 909
kingsideAttackmatemateIn2
foundation
Rating 911
advantageattackingF2F7opening
foundation
Rating 916
crushingdiscoveredAttackendgame
foundation
Rating 916
advantagemiddlegamepin
foundation
Rating 916
advantageendgamepin
foundation
Rating 921
matemateIn1middlegame
foundation
Rating 923
forkmatemateIn2
foundation
Rating 923
crushingdiscoveredAttackkingsideAttack
foundation
Rating 924
matemateIn1middlegame
foundation
Rating 926
mastermatemateIn1
foundation
Rating 930
endgamematemateIn2
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