If you like Sudoku, then you'll love Futoshiki. Futoshiki is another popular Japanese numeric puzzle game. Your aim is to put numbers from one to five in each row and column, so they do not repeat themselves. Numbers must also respect the relational signs placed between some cells. The game includes a generator offering the player three difficulty levels, from easy through medium to hard. For each generated puzzle only one unique solution is guaranteed.

Your goal is to fill cells with numbers 1-5. Each number can occur in row and column only once. You also have to obey inequality signs between cells. Tapping on selected cell toggles notes mode on and off.