public override StrategyResult Apply(Board board, ref string outInfo)
{
for (int k = 0; k < Board.size; k++)
{
IsolatedDoubleResult result = Apply(board.GetBox(k), Group.Box);
if (result != null)
{
return(result);
}
result = Apply(board.GetRow(k), Group.Row);
if (result != null)
{
return(result);
}
result = Apply(board.GetColumn(k), Group.Column);
if (result != null)
{
return(result);
}
}
return(null);
}
private IsolatedDoubleResult Apply(Cell[] cells, Group groupType)
{
for (int i = 0; i < CellInfo.numbers; i++)
{
Cell cell1 = null;
Cell cell2 = null;
bool valid = true;
foreach (Cell cell in cells)
{
if (CellHasNote(cell, i))
{
if (cell1 == null)
{
cell1 = cell;
}
else if (cell2 == null)
{
cell2 = cell;
}
else
{
valid = false;
}
}
}
if (cell2 == null || !valid)
{
continue;
}
for (int j = i + 1; j < CellInfo.numbers; j++)
{
valid = true;
foreach (Cell cell in cells)
{
if ((cell == cell1 || cell == cell2) != CellHasNote(cell, j))
{
valid = false;
}
}
if (valid)
{
bool flag = false;
IsolatedDoubleResult result = new IsolatedDoubleResult(cells, cell1, cell2, i, j, groupType);
for (int k = 0; k < CellInfo.numbers; k++)
{
if (k != i && k != j)
{
if (CellHasNote(cell1, k))
{
((Notes)cell1.info).Values[k] = false;
flag = true;
}
if (CellHasNote(cell2, k))
{
((Notes)cell2.info).Values[k] = false;
flag = true;
}
}
}
if (flag)
{
return(result);
}
}
}
}
return(null);
}