Quite simply an impressive compendium of a huge amount of Sudoku Puzzles, Sudoku Puzzle Collection is a monthly publication devoted to the Japanese number puzzle. Each issue of this handily pocket ...

“I got it it was easy,” wrote a fourth. “I already knew what the puzzle was right off the bat,” wrote a fifth. “Darn at least it wasn’t $100,000,” supported a fifth.

“I got it without any of Kenny’s letters!” wrote another. “I figured that out in about six seconds,” wrote a third. “I got it it was easy,” wrote a fourth. “I already knew what the puzzle was right ...

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Mathematicians have uncovered a powerful pattern known as the 'Phistomefel Ring' - and it's hidden in every Sudoku ever made. Best of all, puzzle experts say the pattern could help you solve ...