Tag Archives: Double Sudoku

Super Samurai Sudoku book

Quad Sudoku Samurai? Double Sudoku Harakiri? Super Sudoku Samurai? What do YOU call this puzzle? Whatever you call it, these puzzles are humongous. There are 13 overlapping Sudoku 9×9 grids in each puzzle. They all overlap Samurai Sudoku style. And… there are 64 of these monsters in this book! If you are a Samurai fan, […]

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Sudoku Variants book

Here is a book with more Sudoku Variants than any other book I’ve ever seen!!! There are 75 sudoku variations altogether, two puzzles of each kind, making 150 very special puzzles. But wait… there is also an extra bonus Clueless Sudoku puzzle at the end! So… here is the book: Tweet Sudoku Variants included in […]

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Double Harakiri Sudoku X

More unique Sudoku puzzles that you’ve never seen before – for die hard fans of big Sudoku puzzles, here is another one – Double Sudoku Harakiri X! There are 13 classic sub-puzzles, which of course don’t have their own (unique) solutions but all together constitute a puzzle with a single solution. This time, however, you […]

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Twin Nonets

Lets formalize the technique that can be used when solving overlapping puzzles, which I have been referring to as “the new solving technique” and that I now call Twin Nonets. Basically, this technique is a sub-technique (or if you like – a consequence) of the naked/hidden triplets technique that you are all probably aware of. […]

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