We think it rivals Sudoku for depth and playability. If you want to check the puzzles or are stuck you know there are Sudoku solvers on this site and a Str8ts solver over at If have not seen Str8ts before - give it a go. Because of the strategy logic we use, even the hardest puzzles have a logical pathway to the end, although it might be obscure to say the least.

We absolutely guarantee a single solution and theoretically you should never need to guess. So whether you are a novice or a pro there is a puzzle to match your skill. Because we use logic to make and grade them we are very confident of the grade spectrum they have been placed on and we can also say that the different between the easiest and the hardest should be very noticeable. We have been making classic puzzles since 2005 and Str8ts since 2008 and hundreds of solvers have helped us hone the logical strategies we use to make them. We're very proud of these puzzles - they come from the same stock we regularly send for print in newspapers around the world so we know pretty quickly if we're not producing the best puzzles.

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