SudokuProblem.fromBoards constructor
SudokuProblem.fromBoards()
Implementation
SudokuProblem.fromBoards(List<List<int>> initialBoard,
List<List<int>> currentBoard, List<List<int>> finalBoard) {
initialState = SudokuState(initialBoard);
currentState = SudokuState(currentBoard);
finalState = SudokuState(finalBoard);
}