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 1764
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1765
discoveredCheckdoubleCheckexposedKing
challenging
Rating 1765
advantagecastlingdiscoveredAttack
challenging
Rating 1767
crushingdiscoveredCheckdoubleCheck
challenging
Rating 1769
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1772
discoveredCheckdoubleCheckendgame
challenging
Rating 1776
discoveredAttackdiscoveredCheckendgame
challenging
Rating 1777
attractiondiscoveredCheckdoubleCheck
challenging
Rating 1778
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1778
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1778
attractioncrushingdiscoveredCheck
challenging
Rating 1779
discoveredCheckdoubleCheckmate
challenging
Rating 1782
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1786
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1788
advancedPawnadvantagediscoveredCheck
challenging
Rating 1792
attractiondiscoveredCheckdoubleCheck
challenging
Rating 1793
discoveredCheckdoubleCheckkingsideAttack
challenging
Rating 1794
discoveredAttackdiscoveredCheckendgame
challenging
Rating 1802
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1804
advantageattractiondiscoveredAttack
challenging
Rating 1806
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1807
crushingdiscoveredAttackdiscoveredCheck
challenging
Rating 1809
advancedPawncrushingdiscoveredAttack
challenging
Rating 1810
discoveredAttackdiscoveredChecklong
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