Comes from a smoke free/pet free home In good condition and works well Exciting, electronic numbers puzzle: logic always wins More than 1,000,000,000 Sudoku puzzles generated at random by the computer 12 difficulty levels Solves Sudoku puzzles found in books, magazines or from the internet Comprehensive help function with explanation of logic and step-by-step derivation Possible solutions maybe be noted, deleted and repeated Saves the last game when switched off Easy to use with 20 keys and cursor key
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