Amusing fitness, warm-up, training and positive energy for the brain. 60 sudoku killer puzzles 8x8 very hard levels. 60 sudoku killer puzzles 9x9 very hard leve

Puzzle fans will love hitori. Instead of filling in numbers on a grid, they have to black them outlike playing sudoku backwards! Hitori is a new brainchild of N

Simple Cross Number is constructed on a crossword grid just like a standard crossword, but the digits 1 to 9 are used instead of the letters of the alphabet. In

This is the book that contains Sudoku medium puzzles in very large print. The perfect gift for any Granma and Grandad. All of the puzzles inside the book are 9x

No Four in a Row is played on a grid of irregular shape. Some cells of the grid contain 'X' and 'O'. The task is to fill in the grid so that four consecutive id