The goal is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1 through 9 exactly once. Each number in the solution therefore occurs only once in each of three "directions". Features of Resco Sudoku: • Full VGA support • New hints (duplicates) • Generate a puzzle in 6 difficulty levels • Enter a puzzle from a newspaper or create your own • Skinable user interface • Puzzle solver • Pencil Marks • Option to check incorrect input • Auto Save / Load game • Quick Save / Load game • Statistics • Undo A fun and addictive version of the hugely popular Japanese puzzle.