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Tough Sudoku for 15/December/2011

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

  1 2 3 4 5 6 7 8 9
Check out the latest post in the Sudoku Forum

Sudoku Solving Techniques

Submitted by: sudoku lover

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Love that place!
15/Dec/11 12:14 AM
UP to 48
conjugate-linked chains
(2)g5=(8)g7=(6)c7 or (2)i5=(9)i7 =>i7<>68 UP to 81
15/Dec/11 12:32 AM
1. Unique possibilities to 48.
2. Whether g5=8,h6=4,h4=9;OR g7=8,c7=6;i7=9.UP81.
15/Dec/11 12:54 AM
Great photo! Have a nice day, everyone.
15/Dec/11 2:47 AM
9.0 mystery level:
000000006070090000100082000090060003020000070400100500000046897000905100000200000
15/Dec/11 2:49 AM
8.4***
090000580801000704200000009004007020000800005300090400000530000000102000002080010
15/Dec/11 4:02 AM
A repeat photo, but nice again.
15/Dec/11 3:29 PM
9.0 mystery about ** level:

1. (7=4)f6-(4=2)g6-g89=(128'-5)h9hi8=d8-(458=7)d5df6 # -7f4
// FXW(6)bh14/g1, -6h2
2. MW(65)b7/acd8.hi8=(34)b17-(368=9)bhi4-(679')dgi7=(6-5)d8=hi8 # -5hi7
// WW(63)b4.g1/h4g5, -3b1
16/Dec/11 2:53 AM
8.4***
// FXW(5), -5e7
1. (2)d4=(2-9)d8=f8-(469)f135=(4)e5 # -2e5
// xyc:(16)f4,(63)d6,(3)f59 # -1f9
2. KCell(168)b6 # -6f3
(1)b6-a5=(16)f45
||
(6)b6-(36)b18=MW(47)b1/df1.e27-(7)b7=b123-a3=WW(16)a3.f4/af5
||
(8)b6- SS(8)bi3.g26=(167)abi3
// FXW(7)be27/b13, -7ac2
3. (7=4)a9-(4=6)a2-e2=e5-(6=7)c5 # -7a5.c9
16/Dec/11 4:18 AM
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