The New Sudoku Players' Forum

[Drjsguo]

I have found a super constrained Sudoku with 91,434 orderly 9-digit constraints, which have sums all equal to 45. It is “Fu Xi Sudoku (伏羲數魔)”, which I previously underestimated it with only 70 such constraints. It is not an ordinary Sudoku because it has no familiar 3x3 9-different-digit boxes. It was designed according to “The Holy Turtle Magic Square (神龜圖)” from “Luo Shu (洛書)”, which was discovered 4,000 years ago in China.
www.chinasudoku.com
Drjsguo 6/28/2007