Zero Trigons

Hi folks, it’s been a while! What can I say? I’ll try to be more regular with new puzzle updates, but I can’t promise anything. New puzzle books are coming soon, so stay tuned. Meanwhile, here is a new Trigons…

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Hanjie book released in Denmark

Hanjie puzzles are spreading around the world. Forlaget SuDoku, a publisher from Denmark has released a Hanjie book in which I am a co-author along with Svend Høgh. The book contains 126 Hanjie puzzles. It is published in Denmark only.

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Computer-generated Hanjie puzzle

I have just implemented a random Hanjie puzzle generator. It generates valid Hanjie (griddlers, pic-a-pix) puzzles but with random patterns – there is no pretty picture in the end! So, if you just like solving Hanjies and don’t care about…

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More Perfect Sudoku in Switzerland!

I am very pleased to make these two announcements – both are related to publications in Switzerland only: 1. A book by Thierry Godel (published by Favre) has come out. It is called “L’essentiel du Sudoku” and it contains various…

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Advanced Sudoku and Kakuro

Since my Sudoku K book is still a few months away, it is time to introduce another book with my Killer Sudoku and Samurai Sudoku puzzles and puzzles from other puzzle creators. The book I’m talking about is called “Teach…

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