Visual Basic - Solo Me Falta Un 1 Dia Sobre Mi Ultima Ayuda Sobre

Hola pues solo me falta el ultimo retoque para acabar y entregar el martes el sudoku terminado y es que el 9 se repite y ayer me pase casi todo el dia intentando hacerlo pero no hay manera se repite el numero aqui os dejo mi codigo haver si alguien me puede ayudar dandome ideas o solucionarme el problema y acabar porfin el sudoku,gracias a todos
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Const Gris As Long = &HFFFFFF

Private SudokuGrid(81) As Integer
Private SudokuTemp(81) As String
Private SudokuSolution(81) As String
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Private Sub cmdGenerar_Click()

While Not CreateSudokuGrid()

Wend

lblDone.Visible = False

SolutionShown = False

If SolutionShown Then

For i = 1 To 81

Text1(i).Text = SudokuTemp(i)

Next i

Else

For i = 1 To 81
SudokuTemp(i) = Text1(i).Text
Text1(i).Text = SudokuSolution(i)

Next

End If

End Sub
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Private Function CreateSudokuGrid() As Boolean

Dim b, i, j, k As Integer

Dim numRand As Integer

Dim ValIsOK(9) As Boolean

Dim valsOK As Integer

valsOK = 0

lblConfiguring.Visible = True

For i = 1 To 81
Text1(i).Text = ""
Text1(i).BackColor = Gris
Text1(i).Visible = False
SudokuSolution(i) = ""

Next i
lblConfiguring.Visible = True
lblConfiguring.Refresh

For i = 1 To 81
If True Then

valsOK = GetValidVals(i, ValIsOK)
If valsOK <= 0 Then

CreateSudokuGrid = False
End If


Randomize
numRand = Int(Rnd * valsOK + 1)

k = 0
For j = 0 To 8
If ValIsOK(j) Then
k = k + 1
If k = numRand Then
Exit For
End If
End If
Next j


Text1(i).Text = CStr(j)
Text1(i).BackColor = Gris

End If

Next i

lblConfiguring.Visible = False
For i = 1 To 81

SudokuSolution(i) = Text1(i).Text
numRand = Rnd(CInt(3) + 1) + 1
If numRand > 1 Then

Text1(i).Text = ""
Text1(i).BackColor = Gris
Text1(i).Enabled = True

Else
Text1(i).Enabled = False

End If
Text1(i).Visible = True

Next i
CreateSudokuGrid = True

End Function
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Private Function GetValidVals(ByVal Location As Integer, ByRef ValidVals() As Boolean) As Integer

Dim i, j, k As Integer
Dim row, col As Integer
Dim numStr As String
Dim numOK As Boolean
Dim retVal As Integer

retVal = 0
For i = 1 To 9
numOK = True
numStr = CStr(i)
For j = 1 To 9

k = (Int((Location - 1) / 9) * 9) + j
If Text1(k).Text = numStr Then

numOK = False

Exit For

End If

Next j

If numOK Then
For j = 1 To 9
k = (((Location - 1) Mod 9) + 1) + ((j - 1) * 9)
If Text1(k).Text = numStr Then

numOK = False

Exit For

End If

Next j

End If

If numOK Then

row = Int(Int((Location - 1) / 9) / 3)
col = Int(((Location - 1) Mod 9) / 3)
For j = 1 To 9
k = (((row * Rnd) + Int((j - 1) / 9)) * 9) + (col * 9) + ((j - 1) Mod 3) + 1

If Text1(k).Text = numStr Then

numOK = False

Exit For

End If

Next j

End If

ValidVals(i) = numOK
If numOK Then

retVal = retVal

End If

Next i

GetValidVals = retVal

End Function