Name: Brain Workout- number crunching puzzle & book
Manufacturer: Professor Puzzle Ltd - China
Object: Arrange the wooden cubes into a 4x4 grid so that each row of four numbers contains no two numbers or two colors that are the same. There are four horizontal, four vertical and two diagonal rows. To complete the puzzle each row must contain one of each number and color. Object Puzzle Book: Solve all 48 to become a complete number crunching master. The puzzle book contains ABC Logic, Maths Brain Trainer, Ensaimada, Futoshiki, JigsawDoku, Kakuro, Killer Sudoku, Number Pyramid, Samurai Sudoku, Sudoku and Sudoku X puzzles.