public SudokuSolution Solve()
{
_solutionSteps.Clear();
_solutionSteps.Add(solutionStep(StepType.InitialBoard));
while (board.Any(s => s.IsAnyDirty))
{
while (board.Any(s => s.IsDirty(StepType.SingletonSearch)) ||
board.Any(s => s.IsDirty(StepType.UnarySpotSearch)) ||
board.Any(s => s.IsDirty(StepType.AmbiguousLinearExclusion)) ||
board.Any(s => s.IsDirty(StepType.PointingTuples)) ||
board.Any(s => s.IsDirty(StepType.HiddenTuples)))
{
while (board.Any(s => s.IsDirty(StepType.SingletonSearch)) ||
board.Any(s => s.IsDirty(StepType.UnarySpotSearch)))
{
while (board.Any(s => s.IsDirty(StepType.SingletonSearch)))
{
RunSingletonSearch();
}
while (board.Any(s => s.IsDirty(StepType.UnarySpotSearch)))
{
RunUnarySearch();
}
}
while (board.Any(s => s.IsDirty(StepType.AmbiguousLinearExclusion)))
{
RunAmbiguousAlignmentExclusion();
}
//foreach (var square in board)
//{
// square.SetDirty(StepType.PointingTuples);
//}
while (board.Any(s => s.IsDirty(StepType.PointingTuples)))
{
RunPointingTuples();
}
while (board.Any(s => s.IsDirty(StepType.HiddenTuples)))
{
RunHiddenTuples();
}
}
while (board.Any(s => s.IsDirty(StepType.NAryAmbiguousLinearExclusion)))
{
RunNAryAbmiguousLinearExclusion();
}
}
return(new SudokuSolution
{
Steps = _solutionSteps
});
}
