Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can ...

Most kids get very nervous about state testing week, especially the third and fourth graders. But, luckily for the students ...

The puzzles are computer generated. Sometimes an easy puzzle may be more difficult than it should be and vice-versa. There is exactly one solution to a puzzle. The puzzles published on Saturdays and ...