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 1877
advantageinterferencelong
challenging
Rating 1897
advantageinterferencelong
challenging
Rating 1902
advantageinterferencelong
challenging
Rating 1904
advantageendgameinterference
challenging
Rating 1924
crushingexposedKinginterference
challenging
Rating 1924
equalityforkinterference
challenging
Rating 1925
advantageinterferencelong
challenging
Rating 1926
advantageendgameinterference
challenging
Rating 1927
crushingendgameinterference
challenging
Rating 1938
equalityinterferencemiddlegame
challenging
Rating 1946
advantageexposedKinginterference
challenging
Rating 1962
attractioncrushingdiscoveredCheck
challenging
Rating 1963
crushingdeflectioninterference
challenging
Rating 1964
crushingdeflectionendgame
challenging
Rating 1969
advantagediscoveredAttackdiscoveredCheck
challenging
Rating 1981
crushingdefensiveMoveendgame
challenging
Rating 1994
crushingforkinterference
challenging
Rating 1997
advantagedeflectioninterference
advanced
Rating 2003
advantageinterferencekingsideAttack
advanced
Rating 2003
crushinginterferencemaster
advanced
Rating 2013
crushingforkinterference
advanced
Rating 2020
crushingexposedKinginterference
advanced
Rating 2030
crushingdiscoveredAttackdiscoveredCheck
advanced
Rating 2036
advantagedeflectionfork
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