Buy Futoshiki PuzzlesFutoshiki puzzles (also known as Hutosiki and even Hutoshiki in some publications) are one of the more unusual puzzles to have come out of Japan over the last couple of years and have started to trickle into print publications across the world as demand for their supply increases.
Futoshiki puzzles are similar to sudoku in the sense that, using logic alone, you can solve the puzzle, and there should be one unique solution for each puzzle. They are also similar in that Futoshiki each row and column must contain each number once only, though there is no box constraint or equivalent in the standard version.
Futoshiki puzzles come in a variety of sizes, ranging standardly from 3 x 3 puzzles up to about 7 x 7 puzzles, and in theory they could be any size. The puzzles start with some givens, but also a range of greater than and less than signs (> and <) that indicate the mathematical relationships between some of the numbers. These puzzles are quite addictive and can be tricky, even when small! Due to the use of the greater and less than signs, few givens need to be stated to create a valid puzzle.
Here is a sample Futoshiki puzzle:
The solution is at the bottom if you get stuck!
All our puzzles are supplied in your choice of PDF or EPS format, and you may choose your difficulty level of the puzzles we supply. You can view a Sample Futoshiki in PDF format. You can also play Futoshiki online at the Puzzle Club.
If you would like to buy any of our Futoshiki / Hutosiki puzzles, or any other Japanese puzzles, please do contact us.
Solution to the Futoshiki puzzle above: