Sudoku XV

Featuring a huge number of Sudoku XV puzzles, all carefully sorted into order of increasing difficulty, this unique collection of 200 puzzles is full of attractively-designed challenges from Gareth Moore, author of many international books. In Sudoku XV all squares which sum to 5 or 10 are marked with a 'v' or 'x'. Since all sums are marked, the lack of a 'v' or 'x' is just as important too! Printed on large, top-quality paper ideal for solving on, the 200 Sudoku XV puzzles vary in difficulty from easy to hard so whatever your preference or experience you'll always find a puzzle here to suit you.