After finding a website where Stephen Lang’s will blog week the Futoshiki puzzle from the newspaper “The Gardian” every week.
I received today a comment from Puzzlemix referring to a website called DoFutoshiki.com where you can solve Futoshiki Puzzles online for free. Downside is that they not yet explain how to solve Futoshiki puzzle and also do not have different levels of Futoshiki puzzles. But this is coming soon.
Buy Futoshiki Puzzle Books from Amazon.com. Happy Puzzling!