Str8ts Solver vs Futoshiki Mastermind

Jeff Widderich had the idea for Str8ts in 2008. Together with Andrew Stuart, he developed a new puzzle that is a successful successor to Sudoku. It is a puzzle where you have to enter the numbers 1 to 9 in the fields, where each digit may occur only once per line and column. With the app you can daily download new puzzles and solve them for free. There are puzzles in different difficulty levels, so that everyone will find something for their level of knowledge. If you can not find a solution, the integrated solver helps to find the next steps. The integrated solver is able to solve even the most extreme str8ts puzzles with a backtracking algorithm. So far, we've only found two puzzles where the one-step backtracking algorithm did not find a solution and needed support from the user. As a further function, you can even enter puzzles, which are available for example in printed form, by hand. An import via a text format is also possible. We thank Jeff Widderich and Andrew Stuart, who gave us permission to use the name "Str8ts". A highlight, of course, is the link from Andrew, through which he daily provides us with new puzzles for the app.

Dive into Futoshiki, the Japanese logic puzzle where every grid hides a unique challenge. Fill the squares with numbers while following the rules of uniqueness, and pay attention to the greater and smaller signs that show the relation between two adjacent cells. There is only one possible solution – can you find it? Futoshiki offers several ways to play. Progress through levels of increasing difficulty, take on the daily challenge with a brand-new puzzle every day, or enjoy the infinite mode with automatically generated grids. Track your progress with integrated trophies and statistics. Save your games with iCloud and pick them up again on any of your devices. The game is free with light advertising. A single purchase removes the ads and unlocks the Hard and Extreme levels. The purchase is universal (iPhone and iPad) and supports Family Sharing. Futoshiki is available in more than 20 languages, including French, English, Spanish, Italian, German, Portuguese (Brazil), Japanese, and Korean. It’s the perfect app for fans of Sudoku, Binairo and other logic puzzles. Will you master the inequalities?