The game resembles Sudoku, but is played on three faces of a cube.
Due to the higher number of cells and values, these puzzles are harder to solve than Sudoku; not necessarily because they require more complex reasoning, but simply because it is more difficult to visually scan the playing area. I found them tiring more than enjoyable; but bear in mind that I can't stand Sudoku anymore, so I'm a bit negatively biased..
If you still like Sudoku, you might enjoy this game. If you want to give the puzzles a try before buying it, there are a few printable samples on the official site.
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