This book is a great way to challenge your mind with Roman numerals. 120 medium-sized (9x9) puzzles with unique solutions that can be achieved using pure logic. No guesswork. To win, fill in the remaining empty cells for each row-column and square (3x3) with Roman numerals I to IX. Be sure not to use the same Roman numeral twice in the same row-column or area (3x3). A fun time for all ages. Do your brain a favour and try it yourself. Then give it to family and friends.