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Tough Sudoku for 26/May/2014


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

  1 2 3 4 5 6 7 8 9
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Sudoku Solving Techniques

Submitted by: sudoku lover

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26/May/14 12:00 AM
SE=7.2 UP to 27
1)Ext. S-Wing:(9=3)b8-b1=(9)c1 or (3)b8-c9=(3)c4=(5)c5 => c45<>9 UP=81
26/May/14 12:15 AM
26/May/14 12:53 AM
(28) 7@b12=>b8<>7
(29 ) 179@ghi5=>i46<>179=>36@i46=>i23<>3
VHBC to (81)
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal More...
26/May/14 6:41 AM
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