George HeinemanGeorge Heineman is a professor of computer science with over twenty years of experience in software engineering and algorithms. He is the author of Algorithms in a Nutshell (2ed) and numerous Safari live training offerings, including Exploring Algorihms in Python and Working with Algorithms in Python. He has a lifelong interest in logical and mathematical puzzles. He is the inventor of Sujiken(R) puzzles, a variation of Sudoku, and Trexagon puzzles. Read More Read Less