Your goal is to clear the field from all numbers. You should find pairs of identical numbers or with sum equal to 10. The numbers should be placed on the same level horizontally or vertically and between them should not be the other numbers. You can add new numbers to make new number pairs. New numbers added to the end of the field. Sequence of new numbers take from current numbers on the fields but without empty cells.
The aim of Sudoku Companion is to make solving Sudoku puzzles more convenient.
