National and international sudoku champion Thomas Snyder explains how to solve the second S.U. Doku puzzle from Stanford University, along with sharing strategies for starting a sudoku. Get it? S.U. The second video is of him actually solving it.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.