Sudoku

常见问题

• Why is Sudoku bad?
  Sudoku puzzles might give your brain a good workout but they could add inches to your waistline. Anyone who taxes their brain on the number grid, as well as taking on crosswords and other word games, could be using up energy needed to exercise, psychologists claim.
• What is the secret to solving Sudoku puzzles?
  There are more than a few techniques to solve a Sudoku puzzle, but per Conceptis Puzzles, the easiest way to a Sudoku solution is to, “Scan rows and columns within each triple-box area, eliminating numbers or squares and finding situations where only a single number can fit into a single square.” If you're looking to ...
• Does Sudoku increase IQ?
  Practising a game like sudoku or using a brain training app might make you better at it but it won't boost your IQ or general brain power, a study claims. And instead, researchers suggest people exercise more, socialise and make sure they get enough sleep if they want their mind to be sharper.
• What does sudoku do for your brain?
  A brain game like sudoku, as well as crossword puzzles, taking classes, reading, and writing, can help delay dementia and Alzheimer's disease, and protect the brain from decline. ... And, says Snyder, while it offers good exercise and stimulation for the brain, sudoku can actually be very relaxing.
• What is the trick to play Sudoku?
• Why is Sudoku evil?
  The goal is to fill the grid, so that each row, column, and 3x3 block contain all the digits from 1 to 9 without repeating. But in Evil Sudoku, there are much fewer numbers on the grid at the beginning. There's going to be only 4 or even fewer numbers. This fact makes the evil sudoku level extremely difficult to solve.
• Can a Sudoku have 2 solutions?
  The short answer is no. While people commonly think that Sudokus can only have one unique solution, any puzzle with seven or fewer starting clues must mathematically have multiple solutions. This is because in these Sudoku puzzles there cannot be a clue for every digit from 1 to 9 in the initial clue.
• What does Sudoku mean in Japanese?
  The name “sudoku” is abbreviated from the Japanese suuji wa dokushin ni kagiru, which means “the numbers (or digits) must remain single.” Now there are sudoku competitions across the globe, and variations of the puzzle often appear side-by-side the crossword puzzle in newspapers and magazines.