Description: Play a Sudoku Brain Blocks game online on Friv Original. You can play all game in Racing Games online. We have a lot of similar game Sudoku Brain Blocks at FrivOriginal.com! Friv Sudoku Brain Blocks is a very funny and hot game. Your task in Sudoku Brain Blocks is to pass all the very difficult levels of the game. Let's conquer Sudoku Brain Blocks now!