XXL SUDOKU – The Ultimate Challenge: Sudoku 25x25 – Extra Hard Logic Puzzle Book for Adults | Extreme Number Sudoku Challenge | Ultimate ... Grid Puzzle for Pros | Extreme Brain Teaser
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Description
For experienced Sudoku fans, this is the ultimate challenge. If you effortlessly solve classic Sudokus, take your skills to the next level with XXL Sudoku. Fill the 25x25 grid with numbers from 1 to 25. As in classic Sudoku, each number can appear only once per row, column, and box. Every puzzle pushes your concentration and logical thinking to the limit. 💥 More Cells, More Possibilities Classic 9×9 Sudokus have 81 cells and only 9 possible values per cell. These 25×25 Sudokus, however, have 625 cells and 25 possible values per cell! The number of possible combinations skyrockets. ✏️ More Complex Logic In 9×9 Sudokus, simple techniques like elimination and scanning are often enough. In 25×25 Sudokus, advanced strategies like fish techniques and XY-Wings become almost essential. 🧠 Greater Cognitive Load You must remember more numbers (1–25 instead of just 1–9). Larger boxes mean more dependencies between numbers. Scanning the entire grid takes longer, testing the limits of your concentration. ⚙️ Difficulty Factor 9x9 Sudokus are relatively easy. A 16×16 Sudoku is about 10 times harder. A 25×25 Sudoku is at least 50 times harder, as the exponential growth in possible combinations makes solving strategies significantly more challenging. Conclusion: Only for True Sudoku Pros! 🔥 What to Expect in This XXL Sudoku Book: 100 challenging XXL Sudoku puzzles Increasing difficulty levels 25x25 grid for the ultimate brain workout Numbers from 1 to 25 instead of just 1 to 9 All solutions for self-checking at the end of the book Extra-wide margins for notes Track your best times and beat your own records! Are You Ready for the Ultimate Sudoku? Challenge yourself and master this XXL format! Or give the ultimate challenge to a puzzle lover who never backs down. Read more
Publisher : Independently published
Publication date : February 24, 2025
Language : English
Print length : 127 pages
ISBN-13 : 06
Item Weight : 10.6 ounces
Reading age : 6 - 18 years
Dimensions : 8.25 x 0.29 x 8.25 inches
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