What are conjugate pairs in math?
What are conjugate pairs in math?A pair of conjugates is a pair of binomials that are exactly the same except...
SUDOKU
What is the most difficult puzzle in the world?
What is the most difficult puzzle in the world?World's Most Difficult Jigsaw Puzzle: Dalmatians.Is Sudoku good for dementia?“Although playing 'brain...
What is an empty rectangle in Sudoku?
What is an empty rectangle in Sudoku?Empty Rectangles in Boxes Empty Rectangles constitute a clever but obscure strategy for Sudoku....
What is the trick to solve Sudoku fast?
What is the trick to solve Sudoku fast?Focus on only one part of a square, row, or column rather than...
Can Sudoku have multiple solutions?
Can Sudoku have multiple solutions?A Sudoku puzzle can have more than one solution, but in this case the kind of...
What happens to your brain when you play Sudoku?
What happens to your brain when you play Sudoku?Sudoku makes you think – and think critically, and it can also...
What is an XY wing in Sudoku?
What is an XY wing in Sudoku?An XY-Wing is a group of three cells, one sharing a unit with the...
What is the highest number used in a Sudoku puzzle?
What is the highest number used in a Sudoku puzzle?6,670,903,752,021,072,936,960 Since this applies to Latin squares in general, most variants...
Does Sudoku only have one solution?
Does Sudoku only have one solution?The short answer is no. While people commonly think that Sudokus can only have one...
Did the Japanese invent Sudoku?
Did the Japanese invent Sudoku?Sudoku was actually not invented in Japan – the first number puzzles that were similar to...
