' Constructs 9 x 9 Primme Number Composed Magic Squares based on:
' One Magic Center Square and eight Semi Magic Border Squares
' Tested with Office 2007 under Windows 7
Sub Priem3d1()
Dim a1(1944), a9(81), a(9), b1(43300), b(43300), c(16), a2(9), b2(43300), c2(16), a3(81)
y = MsgBox("Locked", vbCritical, "Routine Priem3d1")
End
n2 = 0: n3 = 0: k1 = 1: k2 = 1: n9 = 0: n10 = 0
Sht1 = "Pairs3"
' Generate Squares
Sheets("Klad1").Select
t1 = Timer
For j100 = 860 To 2468
GoSub 2010 'Read Prime Numbers From Sheet Sht1
If nVar < 81 Then GoTo 1000
' Determine Center Square
For j9 = m1 To m2 'a(9)
If b(a1(j9)) = 0 Then b(a1(j9)) = a1(j9): c(9) = a1(j9) Else GoTo 160
a(9) = a1(j9)
For j8 = m1 To m2 'a(8)
If b(a1(j8)) = 0 Then b(a1(j8)) = a1(j8): c(8) = a1(j8) Else GoTo 120
a(8) = a1(j8)
a(7) = s1 - a(8) - a(9):
If a(7) < a1(m1) Or a(7) > a1(m2) Then GoTo 110:
If b1(a(7)) = 0 Then GoTo 110
a(6) = 4 * s1 / 3 - a(8) - 2 * a(9):
If a(6) < a1(m1) Or a(6) > a1(m2) Then GoTo 110:
If b1(a(6)) = 0 Then GoTo 110
a(5) = s1 / 3:
If a(5) < a1(m1) Or a(5) > a1(m2) Then GoTo 110:
If b1(a(5)) = 0 Then GoTo 110
a(4) = -2 * s1 / 3 + 1 * a(8) + 2 * a(9):
If a(4) < a1(m1) Or a(4) > a1(m2) Then GoTo 110:
If b1(a(4)) = 0 Then GoTo 110
a(3) = -s1 / 3 + 1 * a(8) + 1 * a(9):
If a(3) < a1(m1) Or a(3) > a1(m2) Then GoTo 110:
If b1(a(3)) = 0 Then GoTo 110
a(2) = 2 * s1 / 3 - a(8):
If a(2) < a1(m1) Or a(2) > a1(m2) Then GoTo 110:
If b1(a(2)) = 0 Then GoTo 110
a(1) = 2 * s1 / 3 - a(9):
If a(1) < a1(m1) Or a(1) > a1(m2) Then GoTo 110:
If b1(a(1)) = 0 Then GoTo 110
' Exclude solutions with identical numbers a()
GoSub 800: If fl1 = 0 Then GoTo 110
GoSub 700 'Assign Center Square
GoSub 900 'Remove used primes a() from available primes b1()
GoSub 2000 'Determine 8 Border Squares
If n10 = 8 Then n10 = 0: n3 = 0: Erase b, c: GoTo 1000
GoSub 905 'Reassign primes a() to available primes b1()
110 b(c(8)) = 0: c(8) = 0
120 Next j8
b(c(9)) = 0: c(9) = 0
160 Next j9
n10 = 0
1000 Next j100
t2 = Timer
t10 = Str(t2 - t1) + " sec., " + Str(n9) + " Solutions for sum" + Str(s1)
y = MsgBox(t10, 0, "Routine Priem3d1")
End
' Determine 8 Border Squares
2000 Erase b2, c2
For jj9 = m1 To m2 'a2(9)
If b1(a1(jj9)) = 0 Then GoTo 165
If b2(a1(jj9)) = 0 Then b2(a1(jj9)) = a1(jj9): c2(9) = a1(jj9) Else GoTo 165
a2(9) = a1(jj9)
For jj8 = m1 To m2 'a2(8)
If b1(a1(jj8)) = 0 Then GoTo 125
If b2(a1(jj8)) = 0 Then b2(a1(jj8)) = a1(jj8): c2(8) = a1(jj8) Else GoTo 125
a2(8) = a1(jj8)
a2(7) = s1 - a2(8) - a2(9):
If a2(7) < a1(m1) Or a2(7) > a1(m2) Then GoTo 115:
If b1(a2(7)) = 0 Then GoTo 115
For jj6 = m1 To m2 'a2(6)
If b1(a1(jj6)) = 0 Then GoTo 100
If b2(a1(jj6)) = 0 Then b2(a1(jj6)) = a1(jj6): c2(6) = a1(jj6) Else GoTo 100
a2(6) = a1(jj6)
a2(5) = -s1 + a2(6) + a2(8) + 2 * a2(9)
If a2(5) < a1(m1) Or a2(5) > a1(m2) Then GoTo 80:
If b1(a2(5)) = 0 Then GoTo 80
a2(4) = 2 * s1 - 2 * a2(6) - a2(8) - 2 * a2(9)
If a2(4) < a1(m1) Or a2(4) > a1(m2) Then GoTo 80:
If b1(a2(4)) = 0 Then GoTo 80
a2(3) = s1 - a2(6) - a2(9)
If a2(3) < a1(m1) Or a2(3) > a1(m2) Then GoTo 80:
If b1(a2(3)) = 0 Then GoTo 80
a2(2) = 2 * s1 - a2(6) - 2 * a2(8) - 2 * a2(9)
If a2(2) < a1(m1) Or a2(2) > a1(m2) Then GoTo 80:
If b1(a2(2)) = 0 Then GoTo 80
a2(1) = -2 * s1 + 2 * a2(6) + 2 * a2(8) + 3 * a2(9)
If a2(1) < a1(m1) Or a2(1) > a1(m2) Then GoTo 80:
If b1(a2(1)) = 0 Then GoTo 80
' Exclude solutions with identical numbers a2()
GoSub 810: If fl1 = 0 Then GoTo 80
n10 = n10 + 1
If n10 < 8 Then
GoSub 750 'Transform and Assign Border Squares
GoSub 910 'Remove used primes a2() from available primes b1()
Erase b2, c2: GoTo 165
Else
GoSub 750 'Transform and Assign Border Squares
GoSub 850 'Double Check Identical Integers
If fl1 = 1 Then
n9 = n9 + 1: GoSub 650 'Print Composed Squares
End If
End If
If n10 = 8 Then Erase b2, c2: Return 'Only eight squares required
80 b2(c2(6)) = 0: c2(6) = 0
100 Next jj6
115 b2(c2(8)) = 0: c2(8) = 0
125 Next jj8
b2(c2(9)) = 0: c2(9) = 0
165 Next jj9
GoSub 915 'Reassign Primes a3()
Return
' Print results (squares)
650 n2 = n2 + 1
If n2 = 3 Then
n2 = 1: k1 = k1 + 10: k2 = 1
Else
If n9 > 1 Then k2 = k2 + 10
End If
Cells(k1, k2 + 1).Select
Cells(k1, k2 + 1).Font.Color = -4165632
Cells(k1, k2 + 1).Value = "MC = " + CStr(s2)
i3 = 0
For i1 = 1 To 9
For i2 = 1 To 9
i3 = i3 + 1
Cells(k1 + i1, k2 + i2).Value = a9(i3)
Next i2
Next i1
Return
' Assign Center Square
700 a9(31) = a(1): a9(32) = a(2): a9(33) = a(3):
a9(40) = a(4): a9(41) = a(5): a9(42) = a(6):
a9(49) = a(7): a9(50) = a(8): a9(51) = a(9):
Return
' Transform and Assign Border Squares
750 Select Case n10
Case 1: 'Left Top
a9(1) = a2(3): a9(2) = a2(2): a9(3) = a2(1):
a9(10) = a2(6): a9(11) = a2(5): a9(12) = a2(4):
a9(19) = a2(9): a9(20) = a2(8): a9(21) = a2(7):
Case 2: 'Right Bottom
a9(61) = a2(3): a9(62) = a2(2): a9(63) = a2(1):
a9(70) = a2(6): a9(71) = a2(5): a9(72) = a2(4):
a9(79) = a2(9): a9(80) = a2(8): a9(81) = a2(7):
' Remaing Squares (Clock Wise)
Case 3:
a9(4) = a2(1): a9(5) = a2(2): a9(6) = a2(3):
a9(13) = a2(4): a9(14) = a2(5): a9(15) = a2(6):
a9(22) = a2(7): a9(23) = a2(8): a9(24) = a2(9):
Case 4:
a9(7) = a2(1): a9(8) = a2(2): a9(9) = a2(3):
a9(16) = a2(4): a9(17) = a2(5): a9(18) = a2(6):
a9(25) = a2(7): a9(26) = a2(8): a9(27) = a2(9):
Case 5:
a9(28) = a2(1): a9(29) = a2(2): a9(30) = a2(3):
a9(37) = a2(4): a9(38) = a2(5): a9(39) = a2(6):
a9(46) = a2(7): a9(47) = a2(8): a9(48) = a2(9):
Case 6:
a9(34) = a2(1): a9(35) = a2(2): a9(36) = a2(3):
a9(43) = a2(4): a9(44) = a2(5): a9(45) = a2(6):
a9(52) = a2(7): a9(53) = a2(8): a9(54) = a2(9):
Case 7:
a9(55) = a2(1): a9(56) = a2(2): a9(57) = a2(3):
a9(64) = a2(4): a9(65) = a2(5): a9(66) = a2(6):
a9(73) = a2(7): a9(74) = a2(8): a9(75) = a2(9):
Case 8:
a9(58) = a2(1): a9(59) = a2(2): a9(60) = a2(3):
a9(67) = a2(4): a9(68) = a2(5): a9(69) = a2(6):
a9(76) = a2(7): a9(77) = a2(8): a9(78) = a2(9):
End Select
Return
' Exclude solutions with identical numbers a()
800 fl1 = 1
For j1 = 1 To 9
a20 = a(j1)
For j2 = (1 + j1) To 9
If a20 = a(j2) Then fl1 = 0: Return
Next j2
Next j1
Return
' Exclude solutions with identical numbers a2()
810 fl1 = 1
For j1 = 1 To 9
a20 = a2(j1)
For j2 = (1 + j1) To 9
If a20 = a2(j2) Then fl1 = 0: Return
Next j2
Next j1
Return
' Exclude solutions with identical numbers a9()
850 fl1 = 1
For j1 = 1 To 81
a20 = a9(j1)
For j2 = (1 + j1) To 81
If a20 = a9(j2) Then fl1 = 0: Return
Next j2
Next j1
Return
' Remove used primes a() from available primes b1()
900 For i1 = 1 To 9
b1(a(i1)) = 0
Next i1
Return
' Reassign primes a() to available primes b1()
905 For i1 = 1 To 9
b1(a(i1)) = a(i1)
Next i1
Return
' Remove used primes a2() from available primes b1()
' Store used primes a2() temporarely in a3()
910 For i1 = 1 To 9
b1(a2(i1)) = 0
n3 = n3 + 1: a3(n3) = a2(i1)
Next i1
Return
' Reassign primes a3() to available primes b1()
915 For i1 = 1 To n3
b1(a3(i1)) = a3(i1)
Next i1
Erase a3: n3 = 0: n10 = 0
Return
' Read Prime Numbers From Sheet Sht1
2010 Cntr3 = Sheets(Sht1).Cells(j100, 4).Value 'Center Element
s1 = 3 * Cntr3 'MC3
s2 = 3 * s1 'MC9
nVar = Sheets(Sht1).Cells(j100, 5).Value
nSemi3 = Sheets(Sht1).Cells(j100, 6).Value 'Expected Nmbr Semi Magic Squares
m1 = 1: m2 = nVar
For i1 = m1 To m2
a1(i1) = Sheets(Sht1).Cells(j100, i1 + 6).Value
Next i1
If a1(1) = 1 Then m1 = 2
Erase b1
For i1 = m1 To m2
b1(a1(i1)) = a1(i1)
Next i1
Return
End Sub
