Sudoku is one of the most popular puzzle games of all time. The objective of Sudoku is to fill a 9-by-9 grid with digits from 1 to 9 such that each column, row, and box (or called "subgrid", "region", ...

xxHash is a very fast hashing algorithm (see the details here). xxhashjs is a Javascript implementation of it, written in 100% Javascript. Although not as fast as the C version, it does perform pretty ...