1068 real-game puzzles in this collection
What is a discovered check?
A discovered check unmasks a check from a rear piece while the front piece moves anywhere it likes. Because the king must answer the check, the moving piece can often capture or threaten with total impunity.
How to spot it
Whenever a piece of yours stands between your rook, bishop or queen and the enemy king, every square that piece can reach is a candidate for a devastating free move.
What this set trains
Solving these builds the reflex to hunt for masked batteries aimed at the king — one of the most forcing weapons in chess.
Foundation: 138Developing: 217Challenging: 209Advanced: 504
challenging
Rating 1715
discoveredAttackdiscoveredCheckendgame
challenging
Rating 1715
advantagediscoveredCheckdoubleCheck
challenging
Rating 1715
discoveredAttackdiscoveredCheckenPassant
challenging
Rating 1718
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1724
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1726
advancedPawnadvantageclearance
challenging
Rating 1726
crushingdiscoveredCheckdoubleCheck
challenging
Rating 1726
discoveredCheckdoubleCheckmaster
challenging
Rating 1728
discoveredAttackdiscoveredCheckmate
challenging
Rating 1728
discoveredAttackdiscoveredCheckendgame
challenging
Rating 1732
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1735
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1735
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1737
discoveredAttackdiscoveredChecklong
challenging
Rating 1740
discoveredAttackdiscoveredCheckmate
challenging
Rating 1740
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1741
discoveredAttackdiscoveredCheckmate
challenging
Rating 1742
advancedPawnadvantagediscoveredAttack
challenging
Rating 1748
clearancecrushingdiscoveredAttack
challenging
Rating 1749
advantagediscoveredCheckdoubleCheck
challenging
Rating 1750
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1753
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1757
discoveredCheckdoubleChecklong
challenging
Rating 1758
crushingdiscoveredAttackdiscoveredCheck
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