def HighlightHiddenSingles(self):
""" Highlight where there are hidden single candidates """
self.ClearHighlights()
hiddenSingles = sd.HiddenSingles(self.currBoard, self.candBoard)
for hiddenSingle in hiddenSingles:
i, j, n = hiddenSingle
self.cells[i][j].HiliteCandidates(set([n]))
