Will Shortz Presents Black Diamond Sudoku: 200 Extreme Puzzles MTO DOVER_APR58 let’s celebrate all the animals

let’s celebrate all the animals who complete The Adorable Circle of Life

While the title of the book implies 'mandalas' which are normally circular or perfect square

distilled down to an uncomplicated form

Use this memory book to record three years of thoughts or magical events most worth remembering

Will Shortz Presents Black Diamond Sudoku: 200 Extreme Puzzles MTO DOVER_APR58 let’s celebrate all the animalsWatch out! These puzzles are for the most extreme solvers! But if you dare, grab a pen and take on these two hundred all new extra challenging puzzles in Will Shortz Presents Black Diamond Sudoku. Features: 200 hard puzzles Big grids for easy solving Introduction by legendary puzzlemaster Will Shortz