Calcudoku is an enthralling and mind-provoking puzzle game that fuses the features of sudoku with fundamental arithmetic. In this game, you are given a grid which is segmented into different cages. Each of these cages comes with a target number and an arithmetic operation. Your task is to populate the grid with numbers that meet the requirements of both sudoku and the particular calculations. The game offers a variety of grid dimensions and levels of difficulty, making it suitable for players at all proficiency levels, ranging from novices to experienced puzzle lovers. You have the option to play with a 4x4, 5x5, 6x6, or 8x8 grid, and each size presents its own distinct set of challenges.