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Tough Sudoku for 16/July/2012

                 
                 
                 
                 
                 
                 
                 
                 
                 

Choose a number, and place it in the grid above.

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Submitted by: Gath

Indicate which comments you would like to be able to see

1. Note gi4=78.Unique possibilities to 40.
2. Whether c2=4=g5,g8=6;OR c3=4,c1=9,g1=3(to avoid the 78 unresolvable rectangle at gi14);a8=3. UP81.
16/Jul/12 1:10 AM
#1. LC and LS up to UP40
#2. Chain[6] : 9c1=(9-4)c3=4c2-4g2=(4-6)g5=6i5-(6=8)i8-(8=1)c8 :=> -1c1; UP81
16/Jul/12 1:18 AM
SE=7.2
1)XYZ:(37=1)b32-(1=3)f2,=>a2<>3
2)AUR(18)bc28:(3)a8=(4)c2-g2=(4-6)g5=(6)g8,=>g8 <>3.UP=81
16/Jul/12 2:01 AM
Typo,2)AUR(18)ac28
16/Jul/12 2:03 AM
12,36
16/Jul/12 5:08 AM
Beautiful photo!!
16/Jul/12 8:25 AM
Copy Robin - beautiful!!
16/Jul/12 10:05 AM
UP to 26 i4=g4=7=>b4<>7, b4=d4=16=>f4=9
Up to 29 6 double@g8&i8=>e8<>6=> e6=6
UP to 40 36 double@d9&f9=>b2=2
UP to 81
16/Jul/12 2:52 PM
UPto26 7double@i4&g4=>b4<>7,16double@b4&d4=>f4=9
Upto29 6double@g8&i8=>e8<>6=> e6=6
UPto40 36double@d9&f9=>b2=2
UPto81
16/Jul/12 3:03 PM
Sorry new to this
UPto26 7double@i4&g4=>b4<>7,16double@b4&d4=>f4=9
Upto29 6double@g8&i8=>e8<>6=> e6=6
UPto40 36double@d9&f9=>b2=2&a8=3
UPto81
16/Jul/12 4:15 PM
Took me forever and ended up having one guess after reaching 45UP....but WOW love the photo! Was worth the perseverance!
Thanks for this one
17/Jul/12 12:19 AM
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