In the world of Sudoku and solving people tend to use different names for exactly the same thing. This glossary provides a reference for all the different names that people use.
This dictionary includes all the terms found at Sudoku Players Forum
In ancient Greek Mythology, Theseus used a thread woven by Ariadne, daughter of King Minos of Crete, to find his way out of the labyrinth, after slaying the Minotaur.
The principle of laying down a thread that you can later use to retrace your steps is the same principle at the core of most brute force solving techniques.
The solver may make a guess at the value in a cell and follow it to it's logical conclusion. If the conclusion is invalid, the thread is followed back to the starting point and another guess is tried.