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Tough Sudoku for 17/November/2013

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

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Submitted by: Gath

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17/Nov/13 12:07 AM
SE=4.2
17/Nov/13 12:49 AM
P-2000 Score 7.25
#1 s-wing-ext(69)[(9)b7*=b8-(9*=6)i8-i3=d3-d4=b4]-(6)b7=hp(67)a79 => a79<>15
||
(9)b23 - (9=415)a125
||
(1)i8 - (1=78)h45-bc5=(8-9)c6=a6-(6)a6=hp(67)a79

#2 (8=2)i6-i9=(2-1)c9=h9-(16=9)gi8-(9=238)i269 => i5<>8
// More...
17/Nov/13 1:11 AM
(26) 28@eg2=>g2<>3
(56) 5@df9=>a9<>5
6?@f9=>[d9=5&f2=7]=>d1={}=>f9<>6
VHBC to (81)
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal row for this candidate
B:Only More...
17/Nov/13 6:36 AM
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