Sudoku Blocks is an online game that challenges you to put together blocks of numbers in the correct order. It is a great way to sharpen your mind and is free to play. The game starts with some of the blocks filled in, and you must use logic to figure out which numbers go in the remaining empty blocks. Sudoku Blocks is a great test of your reasoning and problem-solving skills, and its also a lot of fun! With its simple rules and addictive gameplay, Sudoku Blocks will keep you entertained for hours. And best of all, its free to play!