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100 Cross-Sums Puzzles

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ISBN-10: 1494709368

ISBN-13: 9781494709365

Edition: N/A

Authors: Logi Puzzles Staff, Andrzej Baran, Urszula Marciniak, Joanna Diez

List price: $12.95
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This book contains 100 Cros Sums created by LOGI, the leading Polish puzzle publisher. Inside you will find 100 puzzles different sizes, from 9x13 till 18x26, different difficulty levels. How to solve? Into white fields insert numbers from 1 to 9. White numbers in black fields are the sums of the inserted numbers (e.g. 23 = 9 + 6 + 8). The numbers cannot repeat within one sum. Solve free cross sums at Reasons to like Logi puzzles: Each puzzle has only one solution.Puzzles are tested by a computer program designed by Urszula Marciniak, a mathematician and puzzle lover.You can solve puzzles using only logical thinking - no guessing is…    
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Book details

List price: $12.95
Publisher: CreateSpace Independent Publishing Platform
Publication date: 12/18/2013
Binding: Paperback
Pages: 62
Size: 8.50" wide x 11.00" long x 0.14" tall
Weight: 0.484
Language: English