1) Chess problem 
a common device featuring two black pieces mutually interfering with each other on a single square.
[chess] A Grimshaw is a device found in chess problems in which two black pieces arriving on a particular square mutually interfere with each other. It is named after the 19th century problem composer Walter Grimshaw. The theme can be understood by reference to the following example by A. G. Corrias (published in Good Companion, 1917): The ...
Meaning as a surname: Grimm's wood; a place in Blackburn Lancashire.