public static bool Solve(SudokuGrid grid, out List<string> solution)
{
int[,] g = new int[(grid.Puzzle.Rank * grid.Puzzle.Rank), (grid.Puzzle.Rank * grid.Puzzle.Rank)];
for (int i = 0; i < (grid.Puzzle.Rank * grid.Puzzle.Rank); i++)
{
for (int j = 0; j < (grid.Puzzle.Rank * grid.Puzzle.Rank); j++)
{
g[i, j] = grid.GetCell(i, j).Value.HasValue ? grid.GetCell(i, j).Value.Value : 0;
}
}
bool result = Solve(g, grid.Puzzle.Rank, 0, 0);
if (result)
{
// Set the the solution
solution = new List<string>();
for (int i = 0; i < (grid.Puzzle.Rank * grid.Puzzle.Rank); i++)
{
string line = string.Empty;
for (int j = 0; j < (grid.Puzzle.Rank * grid.Puzzle.Rank); j++)
{
if (!string.IsNullOrEmpty(line))
{
line += ("," + g[i, j].ToString());
}
else
{
line += g[i, j].ToString();
}
}
solution.Add(line);
}
}
else
{
solution = grid.Puzzle.Format;
}
return result;
}