250 excellent puzzles. Levels go on increasing. You can start with a bronze medalist, this is the first 80 puzzles 10 x 10. You can go to the champion, the gold prize - 90 extreme Sudoku 20 x 20. Silver puzzles 15 x 15 are in the middle of the book. All riddles have only 1 solution. 2 puzzles per page. Enough space for your thoughts and decisions. Very convenient and practical. Good brain support in shape. Expands creative thinking. Wide internal...
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Games