brainwork
nounEtymology From brain + work.
1
Work done with the brain; mental effort.
- http://www.gutenberg.net.au/ebooks01/0100011h.html But not more comfortable than we need, I can tell you, comrades, with all the brainwork we have to do nowadays.
- Its rules are so simple they can be explained in two sentences, yet the brainwork needed to solve it is quite complex.2007 March 21, Will Shortz, “A Rush of Excitement, From Filling in Empty Spaces to Completing a Large Loop”, in New York Times: