Sudoku brain game has the ability to train and maintain brain sharpness There have been many scientific studies evaluating the effects of Sudoku games on the human brain, one of the outstanding advantages of Sudoku is to enhance the ability to concentrate and reason for youth, acumen and Mental flexibility for the elderly. So what is the effect of the game Sudoku on the human mind? Recently, researchers have shown that older adults, if trained in a mind game for only 10 to 18 hours, will retain mental flexibility for many years after the training. The researchers also recommend that people should consider Sudoku as one of the necessary activities in training the brain.