Sudokroid

Sudokroid is a logic-based number placement puzzle, which initially starts with a partially completed 9x9 grid. There are 3 difficulty levels that can be selected: "easy", "medium", and "hard".The goal is to fill the grid so that each row, each column and each of the 3x3 boxes contains the digits 1 to 9 exactly once.Hints are provided to help in the selection, and if a selection results in "no move", then you need to go back and revisit some of the prior moves.