About the Author

' Constructs Generators with 4 Magic Rows, Magic Sums s4(i), i = 1 ... 4

' Tested with Office 365 under Windows 11

Sub CnstrGen4()

Dim a(16), a1(16), a2(16), s4(5), c(16)

y = MsgBox("Blocked", vbInformation, "CnstrGen4")
End

Sheets("Klad1").Select

n2 = 0:  k1 = 1: k2 = 1
ShtNm1 = "MgcLns4"

For j1 = 2 To 50

    n10 = 4: Erase a
    For i1 = 1 To 4
        a1(i1) = Sheets(ShtNm1).Cells(j1, i1).Value
    Next i1
    s4(1) = Sheets(ShtNm1).Cells(j1, 5).Value
        
    For i1 = 1 To 4             'First Line
        a(i1) = a1(i1)
    Next i1    
    
For j2 = j1 + 1 To 253
j100 = j2: j101 = 2: GoSub 100: If fl1 = 0 Then GoTo 20

For j3 = j2 + 1 To 253
j100 = j3: j101 = 3: GoSub 100: If fl1 = 0 Then GoTo 30
    
For j4 = j3 + 1 To 253
j100 = j4: j101 = 4: GoSub 100: If fl1 = 0 Then GoTo 40


'   n9 = n9 + 1: GoSub 640      'Print results (lines)
    n9 = n9 + 1: GoSub 650      'Print results (squares)


   n10 = n10 - 4
40 Next j4
   n10 = n10 - 4
30 Next j3
   n10 = n10 - 4
20 Next j2
   n10 = n10 - 4
10 Next j1

End

100 fl1 = 1

    For i1 = 1 To 4
        a2(i1) = Sheets(ShtNm1).Cells(j100, i1).Value
    Next i1
    s4(j101) = Sheets(ShtNm1).Cells(j100, 5).Value

    For i1 = 1 To 4
    a20 = a2(i1)
    For i2 = 1 To n10
        If a20 = a(i2) Then fl1 = 0: Return
    Next i2
    Next i1
    
    n10 = n10 + 4
    i2 = 0
    For i1 = n10 - 4 + 1 To n10
        i2 = i2 + 1
        a(i1) = a2(i2)
    Next i1

    Return

'   Print Results (lines)

640
    For i1 = 1 To 16
        Cells(n9, i1).Value = a(i1)
    Next i1
    
    For i1 = 1 To 4
        Cells(n9, i1 + 16).Value = s4(i1)
    Next i1
    
    Cells(n9, 22).Value = n9 - 1
    Cells(1, 24).Value = n9 - 1
    
    Return

'   Print Results (Squares)

650 n2 = n2 + 1
    If n2 = 5 Then
        n2 = 1: k1 = k1 + 5: k2 = 1
    Else
        If n9 > 1 Then k2 = k2 + 5
    End If

    Cells(k1, k2 + 1).Font.Color = -4165632
    Cells(k1, k2 + 1).Value = n9
    
    i3 = 0
    For i1 = 1 To 4
        For i2 = 1 To 4
            i3 = i3 + 1
            Cells(k1 + i1, k2 + i2).Value = a(i3)
        Next i2
    Next i1
   
    Return

End Sub

About the Author