The actual game of Sudoku is fairly simple, and has nothing to do with mathematics at all - instead, it's all to do with logic. The numbers one to nine must fit horizontally and vertically in the 9x9 Sudoku grid - the catch is that the numbers one to nine must also appear in each of the nine smaller 3x3 grids.
The game features a short tutorial that shows you how to play, as well as a Training option which lets you play five easy puzzles with help. Multiplayer mode is also supported either by taking turns with one system (either co-operatively or competitively), or by playing wirelessly with up to four PSPs.
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Vice President External Development