FUTOSHIKI

Japanese puzzle game related to the arrangement of numbers in a table. You need to enter the numbers in the grid so that none of them is repeated in any row, in any row. In terms of meaning, the task resembles the well-known Sudoku, with some simplifications. There is only one square and fewer numbers. But this, however, is only at the beginning. As you move up the levels, the number of cells in the table will also grow. For example, at the first stage there are only 16 cells in the table, at the second stage there are already 25.

As in Sudoku, some cells in the table are already filled in at the start and the numbers in them cannot be changed. The more filled cells, the easier the task. There are more hints in Futoshiki. There are comparison marks between some cells that indicate which cell has the higher number and which one has the lower number.