![Before Sudoku: The World of Magic Squares: Block, Seymour S, Tavares, Santiago A: 9780195367904: Amazon.com: Books Before Sudoku: The World of Magic Squares: Block, Seymour S, Tavares, Santiago A: 9780195367904: Amazon.com: Books](https://m.media-amazon.com/images/I/81LUgWQtZhL._AC_UF1000,1000_QL80_.jpg)
Before Sudoku: The World of Magic Squares: Block, Seymour S, Tavares, Santiago A: 9780195367904: Amazon.com: Books
![BoardGameGeek on X: "Want a challenge? Solve this sudoku! • The diagonals have the numbers 1-9. • The center box is a magic square. • No number is a "knight's move" away BoardGameGeek on X: "Want a challenge? Solve this sudoku! • The diagonals have the numbers 1-9. • The center box is a magic square. • No number is a "knight's move" away](https://pbs.twimg.com/media/EWQf4k2WoAABDHe.png)
BoardGameGeek on X: "Want a challenge? Solve this sudoku! • The diagonals have the numbers 1-9. • The center box is a magic square. • No number is a "knight's move" away
![Sudoku. Kids and Adult Mathematical Mosaic. Magic Square Stock Vector - Illustration of grid, guess: 113721108 Sudoku. Kids and Adult Mathematical Mosaic. Magic Square Stock Vector - Illustration of grid, guess: 113721108](https://thumbs.dreamstime.com/z/sudoku-kids-adult-mathematical-mosaic-magic-square-logic-puzzle-game-digital-rebus-vector-illustration-113721108.jpg)
Sudoku. Kids and Adult Mathematical Mosaic. Magic Square Stock Vector - Illustration of grid, guess: 113721108
![logical deduction - A Sudoku with only four given digits and some more rules - Puzzling Stack Exchange logical deduction - A Sudoku with only four given digits and some more rules - Puzzling Stack Exchange](https://i.stack.imgur.com/RrLQM.png)