History
Chinese magic squares perfectly balance numbers
HERE’S THE INTERESTING PART
Sudoku is merely a cheap imitation of the Lo Shu Square. Ancient mathematicians discovered that arranging the numbers one through nine in a specific three-by-three grid resulted in every single row, column, and diagonal adding up to exactly fifteen. They viewed this terrifyingly perfect symmetry as profound cosmic alignment, while modern people just view it as a solid headache.
One discovery leads to another.
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