200 Kakuro and 200 Calcudoku 9x9 hard - very hard levels.: Kakuro 17x17 + 18x18 + 19x19+ 20x20 and Calcudoku a heavy and very heavy version of Sudoku ... (Kakuro and Calcudoku classic sudoku)
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200 Kakuro and 200 Calcudoku 9x9 hard - very hard levels.: Kakuro 17x17 + 18x18 + 19x19+ 20x20 and Calcudoku a heavy and very heavy version of Sudoku ... (Kakuro and Calcudoku classic sudoku)

by Basford Holmes

Brain Games puzzle books logic puzzles
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A compilation of hard and very hard Kakuro and Calcudoku puzzles for advanced solvers looking for a serious challenge.

ISBN-13 9781090436368 ASIN 109043636X Views 48 Publisher Independently published Year 2019 Format Paperback Product Group Book Pages 104 Adult No Created May 17, 2026 Updated September 24, 2026
About This Book

This book offers a selection of difficult Kakuro and Calcudoku puzzles for experienced enthusiasts.

Each puzzle is crafted to provide a rigorous test of logic and numerical skills.

Readers can enjoy hours of engaging problem-solving with these classic number-based challenges.

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I will be using this book for: