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Eliminate values in a cell
Choose an empty cell, like 2.3. Out of all the possible values 1-9, eliminate those already found on the same row, column and square as the cell. If only one value is left, write it into the cell. This pattern is also known as Lone Single or Naked Single.
Get the printed book
The Word Sudoku book is now available for purchase on Amazon!
The book contains 366 puzzles, each one using a different word, with varying difficulty levels, and solutions.
Printed on good quality white paper, in large font.
You can see a small sample of the book here.
How to play word sudoku
In word sudou, you must fill in each row, column or 3x3 block using the letters of a word, instead of numbers. Otherwise, normal sudoku rules apply: all letters of the word must be used, without repetitions in rows, columns or blocks.
For example, here is a partially solved board:
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