It is my pleasure to announce that we have partnered with Via Optima publishing house from Portugal and that they will be printing a book with Perfect Killer Sudoku puzzles! The book should be available in bookstores around mid November. At the moment, it will be published only in Portugal.
We are looking for publishers in other countries too. If you refer us to a publisher and they eventually print our book, we’ll surely reward you with a free copy of the book. All proposals please send to sudoku@djapedjape.com
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