"Now a new number puzzle called Hidato^(R) is poised to steal Sudoku's spotlight." - Puzzle Master Scott Kim, Discover magazine.

"Beguiling number puzzles that offer a change of pace from Sudoku. . . . Amusing and engrossing." - Kirkus Reviews.

"Instead of the arithmetical deduction of Sudoku, Hidato . . ., is more of a workout for spatial reasoning skills; the trick is to figure out the right path through points on the grid from among all the possible pathways." - Kirkus Reviews.

Hidato is a pure logic puzzle that's easy to learn but difficult to master, making it the...