This is a Great "EXTRA HARD" Sudoku Puzzle Book for Children Aged 16 and adults of all ages to help sharpen their Reasoning and Logic skills.
✅ 100 "Extra Hard" Sudoku Puzzles
✅ The dimensions of This book are 8.5" x 11"
✅ 1 puzzle per page
✅ Includes all 100 answers
✅ White paper.
✅ 112 total pages
✅ Perfect for older children as well as for adults