[RESOLVED] Help with Sudoku code
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  1. #1
    Join Date
    Nov 2013
    Posts
    1

    [RESOLVED] Help with Sudoku code

    Hi, I'm coding a sudoku generator in excel for fun and the part of the code that generates the board crashes excel every time I execute. Any idea what I'm doing wrong? I don't think I'm sending it into an infinite loop but I've never used While statements before so I could have overlooked something.

    Sub Gen()

    Dim x As Integer
    Dim i As Integer, j As Integer, k As Integer
    Dim M(1 To 9, 1 To 9, 1 To 9) As Integer
    Dim r As Integer, c As Integer, b As Integer
    Dim Match As Boolean


    'reset M
    For r = 1 To 9
    For c = 1 To 9
    For b = 1 To 9
    M(r, c, b) = 0
    Next
    Next
    Next


    For r = 1 To 9
    For c = 1 To 9
    b = solveb(r, c)
    'solveb returns an integer for which box r*c falls into; code there is accurate/has been tested successfully

    Match = False

    While (Match = False) 'tests to see if a number (x, which is random 1-9) is already used in the same row, column, or box

    x = Int((9 * Rnd) + 1)

    For i = 1 To 9
    If M(i, c, b) = x Then Match = True
    Next

    For j = 1 To 9
    If M(r, j, b) = x Then Match = True
    Next

    For k = 1 To 9
    If M(r, c, k) = x Then Match = True
    Next

    Wend

    M(r, c, b) = x

    Next
    Next

    'display

    For r = 1 To 9
    For c = 1 To 9
    b = solveb(r, c)

    Worksheets("Sheet1").Cells(r + 5, c + 5).Value = M(r, c, b)

    Next
    Next

    End Sub

  2. #2
    GCDEF is offline Elite Member Power Poster
    Join Date
    Nov 2003
    Posts
    12,069

    Re: Help with Sudoku code

    Quote Originally Posted by kk123 View Post
    Hi, I'm coding a sudoku generator in excel for fun and the part of the code that generates the board crashes excel every time I execute. Any idea what I'm doing wrong?
    Posting Basic code in a C++ forum?

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