Interference Chess Puzzles
Blocking an enemy piece's line of action. Free to practise, graded easy to hard, no login required.
About interference puzzles
Interference involves placing a piece between two enemy pieces to disrupt their coordination or block a defensive line. By interfering with the connection between the opponent's rooks, queen, or minor pieces, you can create undefended targets or open up mating attacks. Interference puzzles are subtle and require seeing how enemy pieces depend on each other for mutual support. The tactic often involves sacrificing a piece to place it on a key interference square. Practising interference puzzles builds awareness of how pieces communicate across the board and teaches you to look for ways to disrupt the opponent's defensive network with unexpected piece placements.
How to train interference
A interference is a shape, not a sequence. Once you can spot the shape you will find the move in seconds instead of calculating from scratch, so train for recognition speed: glance, name the pattern, then verify.
Questions
How many interference puzzles are there?
Enough that you will not repeat them — this set is drawn from a library of over 1,000,000 puzzles taken from real games, graded from easy to hard.
What level is this suitable for?
Children from about age 5 upward, once they know how the pieces move, through to rated tournament players. Start on the easy set and move up when you are solving most of them at a glance.