Back when I wrote my first post on sudoku variations, I mentioned chess variations at the very end. Today I came across someone has written a book called Chessudoku and is publishing it with lulu.
From the sample pages, the book looks promising. The author, Matthew Skala, has come up with a few different variations (and in some cases has written little stories to go with them.) For example, one puzzle requires you to place the digits 1-8 and a chess knight with the added constraint that no two knights can attack each other. There is a similar puzzle with 8 knights and a queen.
The book is selling for $3.50 and contains 351 puzzles which seems very resonable for a sudoku book.
Nice variantion of Sudoku. I downloaded the sample pdf and will give it a tru. A few weeks ago I saw a Sudoku variation called ChaoSudoku in a Belgium magazine. But could not find anything on the internet. Please check http://www.passionforpuzzles.com/blog/2006/06/chaosudoku.html if you want to read more about it.
Keep puzzling.
Marcel / http://www.passionforpuzzles.com/blog/
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