David Peru has authored over 100 Sudoku video tutorials covering a wide range of beginner, intermediate, and advanced Sudoku topics. He has been solving Sudoku puzzles for over 20 years. And additional experience includes over 30 years of software development and computer problem solving experience. His other hobbies include board gaming, fishing, gardening, the cultivation of Basella alba, cooking, and his cat Frosty.
Dave Peru's YouTube channel:
https://www.youtube.com/channel/UC2N60jDPloV5_imTYKIVH2Q/featured