Pseudoku? That's what you might be thinking when you first spot Eidos' irreverent replacement of Sudoku's traditional numbers for seemingly arbitrary eastern symbols. But rest assured, this is the same orthodox pen and pencil puzzle game that depressingly saved British newspaper sales in all but name and face.
Of course, the recently ubiquitous Japanese puzzle loved by commuters and evangelised by Carol Vorderman has never had anything much to do with numbers anyway - it's a pure logic puzzle. Played on a 9x9 square grid, the aim of the game to fill every row, column and 3x3 sub-box with one of each number from one to nine. There can be no repeats and only logic (no guesswork) can be used to fill the grid. Manage to slot everything in its right place and the panic will go away for a little bit and maybe you'll sleep at night believing you really are in control of your life.
Of course, as each number simply represents a different type of object, one could use nine elements from the periodic table or nine different positions from the Karma Sutra for the game's symbols and it would still play in exactly the same way. In a sense then, that Zendoku doesn't share Sudoku's staid, black and white numerical presentation is irrelevant - underneath the new icons and kung-fu themed textures, it's basically the same game.