Chess Engines that have "Deep" in their names? Why is it that some chess engines have the word deep in their names? It does seem to be a common trend, but not one that is universal.
It used to be the case that the "Deep" specified the multiprocessor version. At least for Fritz, Shredder and so on, the "old" engines. But I guess nowadays every engine is a multi processor engine …

This naming trend was surely started by Deep Thought, the first seriously strong IBM chess machine. And of course Deep Thought was named after the famous computer from the hitchhiker's guide to the galaxy.