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' Generates Associated Magic Squares of order 7 with Square Inlays

' Tested with Office 2007 under Windows 7

Sub MgcSqr7j2()

Dim a(49), b(49), c(49)

y = MsgBox("Locked", vbCritical, "Routine MgcSqr7j2")
End

n2 = 0: n9 = 0: k1 = 1: k2 = 1
m1 = 1: m2 = 49: s1 = 175

'   Generate data
    
    Sheets("Klad1").Select
    
    t1 = Timer

a(25) = 25: b(25) = 25: c(25) = 25

For j49 = m1 To m2                                            'a(49) = 1   Sqr 4
     If b(j49) = 0 Then b(j49) = j49: c(49) = j49 Else GoTo 490
     a(49) = j49
    
     a(1) = 50 - a(49)
     If b(a(1)) = 0 Then b(a(1)) = a(1): c(1) = a(1) Else GoTo 10

For j47 = m1 To m2                                            'a(47) = 8   Sqr 4
     If b(j47) = 0 Then b(j47) = j47: c(47) = j47 Else GoTo 470
     a(47) = j47

     a(3) = 50 - a(47)
     If b(a(3)) = 0 Then b(a(3)) = a(3): c(3) = a(3) Else GoTo 30
     
For j45 = m1 To m2                                            'a(45) = 45  Sqr 4
     If b(j45) = 0 Then b(j45) = j45: c(45) = j45 Else GoTo 450
     a(45) = j45
     
     a(43) = 100 - a(45) - a(47) - a(49)
     If a(43) <= 0 Or a(43) > 49 Then GoTo 430
     If b(a(43)) = 0 Then b(a(43)) = a(43): c(43) = a(43) Else GoTo 430
     a(7) = 50 - a(43)
     If b(a(7)) = 0 Then b(a(7)) = a(7): c(7) = a(7) Else GoTo 70
     a(5) = 50 - a(45)
     If b(a(5)) = 0 Then b(a(5)) = a(5): c(5) = a(5) Else GoTo 50
     
For j35 = m1 To m2                                            'a(35) = 47  Sqr 4
     If b(j35) = 0 Then b(j35) = j35: c(35) = j35 Else GoTo 350
     a(35) = j35
     
     a(33) = 50 - a(35) + 0.5 * a(43) + 0.5 * a(45) - 0.5 * a(47) - 0.5 * a(49)
     If a(33) <= 0 Or a(33) > 49 Then GoTo 330
     If b(a(33)) = 0 Then b(a(33)) = a(33): c(33) = a(33) Else GoTo 330
     a(31) = a(33) - a(45) + a(47)
     If a(31) <= 0 Or a(31) > 49 Then GoTo 310
     If b(a(31)) = 0 Then b(a(31)) = a(31): c(31) = a(31) Else GoTo 310
     a(29) = 100 - 2 * a(33) - a(35) + a(45) - a(47)
     If a(29) <= 0 Or a(29) > 49 Then GoTo 290
     If b(a(29)) = 0 Then b(a(29)) = a(29): c(29) = a(29) Else GoTo 290
     a(21) = -50 + 2 * a(33) + a(35) - a(45) + a(47)
     If a(21) <= 0 Or a(21) > 49 Then GoTo 210
     If b(a(21)) = 0 Then b(a(21)) = a(21): c(21) = a(21) Else GoTo 210
     a(19) = 50 - a(33) + a(45) - a(47)
     If a(19) <= 0 Or a(19) > 49 Then GoTo 190
     If b(a(19)) = 0 Then b(a(19)) = a(19): c(19) = a(19) Else GoTo 190
     a(17) = 50 - a(33)
     If b(a(17)) = 0 Then b(a(17)) = a(17): c(17) = a(17) Else GoTo 170
     a(15) = 50 - a(35)
     If b(a(15)) = 0 Then b(a(15)) = a(15): c(15) = a(15) Else GoTo 150
     
For j41 = m1 To m2                                            'a(41) = 10   Sqr 3 
     If b(j41) = 0 Then b(j41) = j41: c(41) = j41 Else GoTo 410
     a(41) = j41

     a(9) = 50 - a(41)
     If b(a(9)) = 0 Then b(a(9)) = a(9): c(9) = a(9) Else GoTo 90
     
For j39 = m1 To m2                                            'a(39) = 39   Sqr 3 
     If b(j39) = 0 Then b(j39) = j39: c(39) = j39 Else GoTo 390
     a(39) = j39

     a(37) = 75 - a(39) - a(41)
     If a(37) <= 0 Or a(37) > 49 Then GoTo 370
     If b(a(37)) = 0 Then b(a(37)) = a(37): c(37) = a(37) Else GoTo 370
     a(27) = 100 - a(39) - 2 * a(41)
     If a(27) <= 0 Or a(27) > 49 Then GoTo 270
     If b(a(27)) = 0 Then b(a(27)) = a(27): c(27) = a(27) Else GoTo 270
     a(23) = -50 + a(39) + 2 * a(41)
     If a(23) <= 0 Or a(23) > 49 Then GoTo 230
     If b(a(23)) = 0 Then b(a(23)) = a(23): c(23) = a(23) Else GoTo 230
     a(13) = -25 + a(39) + a(41)
     If a(13) <= 0 Or a(13) > 49 Then GoTo 130
     If b(a(13)) = 0 Then b(a(13)) = a(13): c(13) = a(13) Else GoTo 130
     a(11) = 50 - a(39)
     If b(a(11)) = 0 Then b(a(11)) = a(11): c(11) = a(11) Else GoTo 110
     
For j48 = m1 To m2                                            'a(48)         Remainder 
     If b(j48) = 0 Then b(j48) = j48: c(48) = j48 Else GoTo 480
     a(48) = j48

     a(2) = 50 - a(48)
     If b(a(2)) = 0 Then b(a(2)) = a(2): c(2) = a(2) Else GoTo 20
     
For j46 = m1 To m2                                            'a(46) 
     If b(j46) = 0 Then b(j46) = j46: c(46) = j46 Else GoTo 460
     a(46) = j46

     a(44) = 175 - a(46) - a(48) - a(43) - a(45) - a(47) - a(49)
     If a(44) <= 0 Or a(44) > 49 Then GoTo 440
     If b(a(44)) = 0 Then b(a(44)) = a(44): c(44) = a(44) Else GoTo 440
     a(6) = 50 - a(44)
     If b(a(6)) = 0 Then b(a(6)) = a(6): c(6) = a(6) Else GoTo 60
     a(4) = 50 - a(46)
     If b(a(4)) = 0 Then b(a(4)) = a(4): c(4) = a(4) Else GoTo 40
     
For j42 = m1 To m2                                            'a(42) 
     If b(j42) = 0 Then b(j42) = j42: c(42) = j42 Else GoTo 420
     a(42) = j42

     a(8) = 50 - a(42)
     If b(a(8)) = 0 Then b(a(8)) = a(8): c(8) = a(8) Else GoTo 80

For j40 = m1 To m2                                            'a(40) 
     If b(j40) = 0 Then b(j40) = j40: c(40) = j40 Else GoTo 400
     a(40) = j40

     a(10) = 50 - a(40)
     If b(a(10)) = 0 Then b(a(10)) = a(10): c(10) = a(10) Else GoTo 100

For j38 = m1 To m2                                            'a(38) 
     If b(j38) = 0 Then b(j38) = j38: c(38) = j38 Else GoTo 380
     a(38) = j38

     a(36) = 100 - a(38) - a(40) - a(42)
     If a(36) <= 0 Or a(36) > 49 Then GoTo 360
     If b(a(36)) = 0 Then b(a(36)) = a(36): c(36) = a(36) Else GoTo 360
     a(28) = 125 - a(38) - a(40) - 2 * a(42)
     If a(28) <= 0 Or a(28) > 49 Then GoTo 280
     If b(a(28)) = 0 Then b(a(28)) = a(28): c(28) = a(28) Else GoTo 280
     a(26) = 25 + a(38) - a(40)
     If a(26) <= 0 Or a(26) > 49 Then GoTo 260
     If b(a(26)) = 0 Then b(a(26)) = a(26): c(26) = a(26) Else GoTo 260
     a(24) = 50 - a(26)
     If b(a(24)) = 0 Then b(a(24)) = a(24): c(24) = a(24) Else GoTo 240
     a(22) = 50 - a(28)
     If b(a(22)) = 0 Then b(a(22)) = a(22): c(22) = a(22) Else GoTo 220
     a(14) = 50 - a(36)
     If b(a(14)) = 0 Then b(a(14)) = a(14): c(14) = a(14) Else GoTo 140
     a(12) = 50 - a(38)
     If b(a(12)) = 0 Then b(a(12)) = a(12): c(12) = a(12) Else GoTo 120
     
For j34 = m1 To m2                                            'a(34) 
     If b(j34) = 0 Then b(j34) = j34: c(34) = j34 Else GoTo 340
     a(34) = j34
     
     a(32) = 150 - 2 * a(34) - a(46) - 2 * a(48)
     If a(32) <= 0 Or a(32) > 49 Then GoTo 320
     If b(a(32)) = 0 Then b(a(32)) = a(32): c(32) = a(32) Else GoTo 320
     a(30) = 75 - a(32) - a(34)
     If a(30) <= 0 Or a(30) > 49 Then GoTo 300
     If b(a(30)) = 0 Then b(a(30)) = a(30): c(30) = a(30) Else GoTo 300
     a(20) = 50 - a(30)
     If b(a(20)) = 0 Then b(a(20)) = a(20): c(20) = a(20) Else GoTo 200
     a(18) = 50 - a(32)
     If b(a(18)) = 0 Then b(a(18)) = a(18): c(18) = a(18) Else GoTo 180
     a(16) = 50 - a(34)
     If b(a(16)) = 0 Then b(a(16)) = a(16): c(16) = a(16) Else GoTo 160
     
                                    n9 = n9 + 1
                                    GoSub 2650 'Print results (squares)
'                                   GoSub 2645 'Print results (selected numbers
     
    b(c(16)) = 0: c(16) = 0
160 b(c(18)) = 0: c(18) = 0
180 b(c(20)) = 0: c(20) = 0
200 b(c(30)) = 0: c(30) = 0
300 b(c(32)) = 0: c(32) = 0
320 b(c(34)) = 0: c(34) = 0
340 Next j34
    
    b(c(12)) = 0: c(12) = 0
120 b(c(14)) = 0: c(14) = 0
140 b(c(22)) = 0: c(22) = 0
220 b(c(24)) = 0: c(24) = 0
240 b(c(26)) = 0: c(26) = 0
260 b(c(28)) = 0: c(28) = 0
280 b(c(36)) = 0: c(36) = 0
360 b(c(38)) = 0: c(38) = 0
380 Next j38
    
    b(c(10)) = 0: c(10) = 0
100 b(c(40)) = 0: c(40) = 0
400 Next j40

    b(c(8)) = 0: c(8) = 0
80  b(c(42)) = 0: c(42) = 0
420 Next j42

    b(c(4)) = 0: c(4) = 0
40  b(c(6)) = 0: c(6) = 0
60  b(c(44)) = 0: c(44) = 0
440 b(c(46)) = 0: c(46) = 0
460 Next j46

    b(c(2)) = 0: c(2) = 0
20  b(c(48)) = 0: c(48) = 0
480 Next j48
     
    b(c(11)) = 0: c(11) = 0
110 b(c(13)) = 0: c(13) = 0
130 b(c(23)) = 0: c(23) = 0
230 b(c(27)) = 0: c(27) = 0
270 b(c(37)) = 0: c(37) = 0
370 b(c(39)) = 0: c(39) = 0
390 Next j39
     
    b(c(9)) = 0: c(9) = 0
90  b(c(41)) = 0: c(41) = 0
410 Next j41
     
    b(c(15)) = 0: c(15) = 0
150 b(c(17)) = 0: c(17) = 0
170 b(c(19)) = 0: c(19) = 0
190 b(c(21)) = 0: c(21) = 0
210 b(c(29)) = 0: c(29) = 0
290 b(c(31)) = 0: c(31) = 0
310 b(c(33)) = 0: c(33) = 0
330 b(c(35)) = 0: c(35) = 0
350 Next j35
     
    b(c(5)) = 0: c(5) = 0
50  b(c(7)) = 0: c(7) = 0
70  b(c(43)) = 0: c(43) = 0
430 b(c(45)) = 0: c(45) = 0
450 Next j45
     
    b(c(3)) = 0: c(3) = 0
30  b(c(47)) = 0: c(47) = 0
470 Next j47

    b(c(1)) = 0: c(1) = 0
10  b(c(49)) = 0: c(49) = 0
490 Next j49
    
    t2 = Timer
    
    t10 = Str(t2 - t1) + " sec., " + Str(n9) + " Solutions for sum" + Str(s1)
    y = MsgBox(t10, 0, "Routine MgcSqr7j2")

End

'   Print results (selected numbers)

2645 For i1 = 1 To 49
         Cells(n9, i1).Value = a(i1)
     Next i1
    
     Return

'   Print results (squares)

2650 n2 = n2 + 1
     If n2 = 5 Then
         n2 = 1: k1 = k1 + 8: k2 = 1
     Else
         If n9 > 1 Then k2 = k2 + 8
     End If
     
     Cells(k1, k2 + 1).Select
     Cells(k1, k2 + 1).Font.Color = -4165632
     Cells(k1, k2 + 1).Value = n9
    
     i3 = 0
     For i1 = 1 To 7
         For i2 = 1 To 7
             i3 = i3 + 1
             Cells(k1 + i1, k2 + i2).Value = a(i3)
         Next i2
     Next i1
    
     Return

End Sub

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