In word sudou you must fill in each row column or 3x3 block using the letters of a word instead of numbers. Otherwise normal sudoku rules apply all letters of a 9letter word must be used without repetitions in rows columns or blocks.The main benefit of word sudoku compared to normal sudoku is that it activates more parts of the brain at the same time verbal skills memory logical reasoning and counting brain regions are all stimulated simultaneously.This makes the game an excellent way to train your mind and keep it active and healthyRemember how the first time you played regular sudoku you found the game intense and challenging As it felt like a fullblown brain workoutSadly that feeling goes away gradually over time in most players as they get better at sudoku.Thats because as our brains learn how to solve a problem they become much more efficient at it and start using only a small fraction of our brain capacity to solve it. Instead of using complex logical reasoning skills we start to form pattern matching parts that work on autopilot.This means that if you want to get your mind busy and active and improve your memory regular sudoku does not help you that much.