Enovative Number Placement Sudoku Lecture 0

Hung-ping Tsao (2026). Enovative Number Placement Sudoku Lecture 0. In: "Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)", Lawrence K. Wang and Hung-ping Tsao (editors). Volume 8, Number 4B, April 2026; 52 pages. Lenox Institute Press MA, USA. ABSTRACT: • Hard sudoku puzzles are usually designed for defying our logical reasonings, so we can counter with the Principle of Least Choice (PLC) by selecting the least likely one when facing the multiple choices of our next move. The harder the puzzle, the more often PLC is recommended to be used. Hard puzzles can sometimes be solved by the construction of strategic flipflops. • The purpose of this lecture series is for you to have a new prospective in playing Sudoku. In addition to the introduction of efficient methods, we most importantly stress on the number placement aspect of Sudoku. • Our original plan was to present puzzles from MUNBER PLACE BOOK SERIES, but we found two puzzles with multiple solutions among 16 presented here! Therefore, we call this preliminary introduction Lecture 0. We shall, instead, try to solve most of puzzles from ULTIMATE 600 PUZZLES for the subsequent lecture series.