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- Ideal mate
- A pure mate in which all units of both colours take part in the mate.
- Interference
- The closure of the line of one piece by a second piece, thus limiting its movement and cutting it off from certain squares. Various names are given to particular types of interference, among them Grimshaw, Novotny, anti-Bristol, Holzhausen, Würzburg-Plachutta and Plachutta.
Read more about this topic: Glossary Of Chess Problems