Get Through FRCA Primary – 710 MCQ's

www.ums.ac.uk the main), a short explanation is probably in order. Sudoku is a logic puzzle centred around a square grid of 9 cells by 9, which is subdivided into 9 blocks of 3 cells by 3. Each cell contains one of the digits 1-9 (but any letter or symbol can be used, as there is no arithmetical relationship between the numbers). The fundamental rule is this: each row, each column, and each 3x3 block must contain only one instance of each digit (or letter or symbol). Each individual puzzle is seeded with some digits already in place, and your role, as the Sudokeur (I made that up) is to put all the other digits back in place, and complete the grid. That’s all there is to it – a puzzle of pure unadulterated logic.