' Generates Inlaid Magic Squares of order 6

' Tested with Office 2007 under Windows 7

```Sub MagSqrs674()

Dim a1(36), a(36), b1(36), b(36), c(36)

y = MsgBox("Locked", vbCritical, "Routine MgcSqrss674")
End

n2 = 0: n3 = 0: k1 = 1: k2 = 1: n9 = 0
s6 = 111

'   Define Integers

For i1 = 1 To 36
b1(i1) = i1
Next i1
m1 = 1: m2 = 36

For j100 = 2 To 97
Cells(k1, 1).Select: Cells(k1, 1).Value = j100

'   Read Inlaid Sqr (3 x 3)

Erase a
a(22) = Sheets("Lines3").Cells(j100, 1).Value
a(23) = Sheets("Lines3").Cells(j100, 2).Value
a(24) = Sheets("Lines3").Cells(j100, 3).Value
a(28) = Sheets("Lines3").Cells(j100, 4).Value
a(29) = Sheets("Lines3").Cells(j100, 5).Value
a(30) = Sheets("Lines3").Cells(j100, 6).Value
a(34) = Sheets("Lines3").Cells(j100, 7).Value
a(35) = Sheets("Lines3").Cells(j100, 8).Value
a(36) = Sheets("Lines3").Cells(j100, 9).Value

s31 = 3 * a(29)             'MC3
s32 = s6 - s31              'MC32 Magic Rectangles
s4  = s6 - a(23) - a(24)    'MC4
Pr3 = s6 - s4               'Pair Sum Border Pairs

If 2 * s32 / 3 <> Pr3 Then GoTo 1000

'   Block used Variables

For i1 = 1 To 36
a1(i1) = i1
If a(i1) <> 0 Then b(a(i1)) = a(i1)
Next i1

'   Simple Magic Square (4 x 4)

For j21 = m1 To m2                                          'a(21)
If b(a1(j21)) = 0 Then b(a1(j21)) = a1(j21): c(21) = a1(j21) Else GoTo 210
a(21) = a1(j21)

Cells(k1 + 1, 1).Select: Cells(k1 + 1, 1).Value = j21

For j20 = m1 To m2                                          'a(20)
If b(a1(j20)) = 0 Then b(a1(j20)) = a1(j20): c(20) = a1(j20) Else GoTo 200
a(20) = a1(j20)

a(19) = s4 - a(20) - a(21) - a(22)
If a(19) < a1(m1) Or a(19) > a1(m2) Then GoTo 190
If b1(a(19)) = 0 Then GoTo 190
If b(a(19)) = 0 Then b(a(19)) = a(19): c(19) = a(19) Else GoTo 190

For j16 = m1 To m2                                          'a(16)
If b(a1(j16)) = 0 Then b(a1(j16)) = a1(j16): c(16) = a1(j16) Else GoTo 160
a(16) = a1(j16)
For j15 = m1 To m2                                          'a(15)
If b(a1(j15)) = 0 Then b(a1(j15)) = a1(j15): c(15) = a1(j15) Else GoTo 150
a(15) = a1(j15)
For j14 = m1 To m2                                          'a(14)
If b(a1(j14)) = 0 Then b(a1(j14)) = a1(j14): c(14) = a1(j14) Else GoTo 140
a(14) = a1(j14)

a(13) = s4 - a(14) - a(15) - a(16)
If a(13) < a1(m1) Or a(13) > a1(m2) Then GoTo 130
If b1(a(13)) = 0 Then GoTo 130
If b(a(13)) = 0 Then b(a(13)) = a(13): c(13) = a(13) Else GoTo 130

For j10 = m1 To m2                                           'a(10)
If b(a1(j10)) = 0 Then b(a1(j10)) = a1(j10): c(10) = a1(j10) Else GoTo 100
a(10) = a1(j10)

a(9) = a(10) - a(14) + a(16) - a(19) + a(22)
If a(9) < a1(m1) Or a(9) > a1(m2) Then GoTo 90:
If b1(a(9)) = 0 Then GoTo 90
If b(a(9)) = 0 Then b(a(9)) = a(9): c(9) = a(9) Else GoTo 90

a(8) = s4 - a(10) - a(15) - a(16) + a(19) - a(22)
If a(8) < a1(m1) Or a(8) > a1(m2) Then GoTo 80:
If b1(a(8)) = 0 Then GoTo 80
If b(a(8)) = 0 Then b(a(8)) = a(8): c(8) = a(8) Else GoTo 80

a(7) = -a(10) + a(14) + a(15)
If a(7) < a1(m1) Or a(7) > a1(m2) Then GoTo 70:
If b1(a(7)) = 0 Then GoTo 70
If b(a(7)) = 0 Then b(a(7)) = a(7): c(7) = a(7) Else GoTo 70

a(4) = s4 - a(9) - a(14) - a(19)
If a(4) < a1(m1) Or a(4) > a1(m2) Then GoTo 40:
If b1(a(4)) = 0 Then GoTo 40
If b(a(4)) = 0 Then b(a(4)) = a(4): c(4) = a(4) Else GoTo 40

a(3) = -s4 - a(10) + a(13) + 2 * a(14) + 2 * a(19) + a(20)
If a(3) < a1(m1) Or a(3) > a1(m2) Then GoTo 30:
If b1(a(3)) = 0 Then GoTo 30
If b(a(3)) = 0 Then b(a(3)) = a(3): c(3) = a(3) Else GoTo 30

a(2) = a(10) - a(13) - 2 * a(14) + a(21) + 2 * a(22)
If a(2) < a1(m1) Or a(2) > a1(m2) Then GoTo 20:
If b1(a(2)) = 0 Then GoTo 20
If b(a(2)) = 0 Then b(a(2)) = a(2): c(2) = a(2) Else GoTo 20

a(1) = a(10) + a(16) - a(19)
If a(1) < a1(m1) Or a(1) > a1(m2) Then GoTo 10:
If b1(a(1)) = 0 Then GoTo 10
If b(a(1)) = 0 Then b(a(1)) = a(1): c(1) = a(1) Else GoTo 10

'   Border Pairs Bottom/Left

For j31 = m1 To m2                                          'a(31)
If b(a1(j31)) = 0 Then b(a1(j31)) = a1(j31): c(31) = a1(j31) Else GoTo 310
a(31) = a1(j31)

a(25) = Pr3 - a(31):
If a(25) < a1(m1) Or a(25) > a1(m2) Then GoTo 250
If b1(a(25)) = 0 Then GoTo 250
If b(a(25)) = 0 Then b(a(25)) = a(25): c(25) = a(25) Else GoTo 250

For j26 = m1 To m2                                          'a(26)
If b(a1(j26)) = 0 Then b(a1(j26)) = a1(j26): c(26) = a1(j26) Else GoTo 260
a(26) = a1(j26)

a(32) = Pr3 - a(26):
If a(32) < a1(m1) Or a(32) > a1(m2) Then GoTo 320
If b1(a(32)) = 0 Then GoTo 320
If b(a(32)) = 0 Then b(a(32)) = a(32): c(32) = a(32) Else GoTo 320

a(27) = s32 - a(25) - a(26)
If a(27) < a1(m1) Or a(27) > a1(m2) Then GoTo 270
If b1(a(27)) = 0 Then GoTo 270
If b(a(27)) = 0 Then b(a(27)) = a(27): c(27) = a(27) Else GoTo 270

a(33) = Pr3 - a(27):
If a(33) < a1(m1) Or a(33) > a1(m2) Then GoTo 330
If b1(a(33)) = 0 Then GoTo 330
If b(a(33)) = 0 Then b(a(33)) = a(33): c(33) = a(33) Else GoTo 330

'  Complete Diagonal and Border Pairs Top/Right

For j11 = m1 To m2                                          'a(11)
If b(a1(j11)) = 0 Then b(a1(j11)) = a1(j11): c(11) = a1(j11) Else GoTo 110
a(11) = a1(j11)

a(12) = Pr3 - a(11):
If a(12) < a1(m1) Or a(12) > a1(m2) Then GoTo 120
If b1(a(12)) = 0 Then GoTo 120
If b(a(12)) = 0 Then b(a(12)) = a(12): c(12) = a(12) Else GoTo 120

a(6) = s6 - a(31) - a(26) - a(21) - a(16) - a(11)
If a(6) < a1(m1) Or a(6) > a1(m2) Then GoTo 60
If b1(a(6)) = 0 Then GoTo 60
If b(a(6)) = 0 Then b(a(6)) = a(6): c(6) = a(6) Else GoTo 60

a(5) = Pr3 - a(6):
If a(5) < a1(m1) Or a(5) > a1(m2) Then GoTo 50
If b1(a(5)) = 0 Then GoTo 50
If b(a(5)) = 0 Then b(a(5)) = a(5): c(5) = a(5) Else GoTo 50

a(18) = s32 - a(12) - a(6)
If a(18) < a1(m1) Or a(18) > a1(m2) Then GoTo 180
If b1(a(18)) = 0 Then GoTo 180
If b(a(18)) = 0 Then b(a(18)) = a(18): c(18) = a(18) Else GoTo 180

a(17) = Pr3 - a(18):
If a(17) < a1(m1) Or a(17) > a1(m2) Then GoTo 170
If b1(a(17)) = 0 Then GoTo 170
If b(a(17)) = 0 Then b(a(17)) = a(17): c(17) = a(17) Else GoTo 170

n9 = n9 + 1: GoSub 2650 'Print results (squares)
GoTo 1000               'Print only one square for each j100

b(c(17)) = 0: c(17) = 0
170 b(c(18)) = 0: c(18) = 0
180 b(c(5)) = 0: c(5) = 0
50  b(c(6)) = 0: c(6) = 0
60  b(c(12)) = 0: c(12) = 0
120 b(c(11)) = 0: c(11) = 0
110 Next j11

b(c(33)) = 0: c(33) = 0
330 b(c(27)) = 0: c(27) = 0
270 b(c(32)) = 0: c(32) = 0
320 b(c(26)) = 0: c(26) = 0
260 Next j26

b(c(25)) = 0: c(25) = 0
250 b(c(31)) = 0: c(31) = 0
310 Next j31

b(c(1)) = 0: c(1) = 0
10  b(c(2)) = 0: c(2) = 0
20  b(c(3)) = 0: c(3) = 0
30  b(c(4)) = 0: c(4) = 0
40  b(c(7)) = 0: c(7) = 0
70  b(c(8)) = 0: c(8) = 0
80  b(c(9)) = 0: c(9) = 0
90  b(c(10)) = 0: c(10) = 0
100 Next j10

b(c(13)) = 0: c(13) = 0
130 b(c(14)) = 0: c(14) = 0
140 Next j14
b(c(15)) = 0: c(15) = 0
150 Next j15
b(c(16)) = 0: c(16) = 0
160 Next j16
b(c(19)) = 0: c(19) = 0
190 b(c(20)) = 0: c(20) = 0
200 Next j20
b(c(21)) = 0: c(21) = 0
210 Next j21

1000 Erase b, c
Next j100

t2 = Timer

t10 = Str(t2 - t1) + " sec., " + Str(n9) + " Solutions for sum" + Str(s6)
y = MsgBox(t10, 0, "Routine MgcSqrs674")
End

'    Print results (squares)

2650 n2 = n2 + 1
If n2 = 5 Then
n2 = 1: k1 = k1 + 7: k2 = 1
Else
If n9 > 1 Then k2 = k2 + 7
End If

Cells(k1, k2 + 1).Select
Cells(k1, k2 + 1).Font.Color = -4165632
Cells(k1, k2 + 1).Value = j100          '"MC = " + CStr(s6)

i3 = 0
For i1 = 1 To 6
For i2 = 1 To 6
i3 = i3 + 1
Cells(k1 + i1, k2 + i2).Value = a(i3)
Next i2
Next i1

Return

End Sub
```