private void EliminateNakedPairFromOthersInGroup(int[,] sodokuBoard, int givenRow, int givenCol)
{
if (!HasNakedPairInGroup(sodokuBoard, givenRow, givenCol))
{
return;
}
var sodokuMap = _sodokuMapper.Find(givenRow, givenCol);
for (int row = sodokuMap.StartRow; row <= sodokuMap.StartRow + 2; row++)
{
for (int col = sodokuMap.StartCol; col <= sodokuMap.StartCol + 2; col++)
{
if (sodokuBoard[row, col].ToString().Length > 1 && sodokuBoard[row, col] != sodokuBoard[givenRow, givenCol])
{
EliminateNakedPair(sodokuBoard, sodokuBoard[givenRow, givenCol], givenRow, givenCol);
}
}
}
}
private int GetPossibilitiesInGroup(int[,] sodokuBoard, int givenRow, int givenCol)
{
int[] possibilities = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
var sodokuMap = _sodokuMapper.Find(givenRow, givenCol);
for (int row = sodokuMap.StartRow; row <= sodokuMap.StartRow + 2; row++)
{
for (int col = sodokuMap.StartCol; col <= sodokuMap.StartCol + 2; col++)
{
if (IsValidSingle(sodokuBoard[row, col]))
{
possibilities[sodokuBoard[row, col] - 1] = 0;
}
}
}
return(Convert.ToInt32(String.Join(string.Empty, possibilities.Select(p => p).Where(p => p != 0))));
}