202 real-game puzzles in this collection
What is a interference?
Interference cuts the line between two enemy pieces that defend each other, usually by planting a piece on the intersection square. Both severed halves then hang at once.
How to spot it
Map which enemy pieces rely on a shared rank, file or diagonal for defense. A sacrifice on the crossing point breaks the connection and wins material by force.
What this set trains
These are subtle puzzles that reward geometric thinking — seeing defensive lines as wires you can cut.
Foundation: 16Developing: 45Challenging: 53Advanced: 88
challenging
Rating 1686
crushingdiscoveredCheckdoubleCheck
challenging
Rating 1687
advantageattractioninterference
challenging
Rating 1693
crushingendgameinterference
challenging
Rating 1697
crushinginterferencemiddlegame
challenging
Rating 1700
advantageinterferencemiddlegame
challenging
Rating 1701
advantageforkinterference
challenging
Rating 1706
endgameinterferencemate
challenging
Rating 1725
endgameinterferencemate
challenging
Rating 1729
advantagedeflectionfork
challenging
Rating 1740
deflectionendgameinterference
challenging
Rating 1769
crushingendgameinterference
challenging
Rating 1778
attractioncrushingdiscoveredCheck
challenging
Rating 1781
crushingdeflectioninterference
challenging
Rating 1786
crushinginterferenceintermezzo
challenging
Rating 1811
crushinginterferencelong
challenging
Rating 1812
advantageinterferencemiddlegame
challenging
Rating 1820
advantageinterferencemaster
challenging
Rating 1828
advantageendgameinterference
challenging
Rating 1834
attractioncrushingendgame
challenging
Rating 1839
crushingendgameinterference
challenging
Rating 1842
endgameequalityinterference
challenging
Rating 1863
crushingendgameinterference
challenging
Rating 1870
advantageinterferenceintermezzo
challenging
Rating 1872
crushingendgamefork
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