Interference puzzles
You place a piece between two enemy pieces so that one of them can no longer defend the other..
About interference puzzles
You place a piece between two enemy pieces so that one of them can no longer defend the other.
How to spot it
- Find two enemy pieces that protect each other along a line.
- Place a piece between them, ideally safe, or one that gives check.
- Capture what is left undefended.
A common mistake
Putting a piece on the line where it can be captured.
A worked example
R
B
Q
K
RB
N
Q
B
RBR
KWhite to move. Black has just played Nxe5. Find the best move.
Solution: 16. Qh7+ Kf8 17. Qh8+ Ke7 18. Bxg5+
Qh7+ checks the king and also attacks the pawn on g7, so your opponent has to answer the check. The idea: You place a piece between two enemy pieces so that one of them can no longer defend the other..
The highlighted squares show Black's last move. This position is a different puzzle from the ones you start with above (1234 rating).
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Questions
What is interference?
A move that cuts the line between two enemy pieces, leaving one or both without protection.
Where do these puzzles come from?
They are real puzzles from the Lichess puzzle database, which is free to use under the CC0 license. Each one was built from a real game and tested by many players. We picked well-rated ones with good popularity scores.
Are the puzzles free?
Yes. There is no signup, no limit and no ads on the puzzles. Your progress on this page is not saved after you leave.
What do the difficulty levels mean?
Beginner puzzles are rated under 1250, intermediate 1250 to 1749 and advanced 1750 and up, using the rating Lichess players earned on each puzzle.