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Tough Sudoku for 6/June/2012

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

  1 2 3 4 5 6 7 8 9
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Submitted by: Gath

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Oh - I just love this guy (gal?)
Adorable!
06/Jun/12 12:34 AM
SE=7.2
SSTS to UP=32
1)(7)d4=h4-h9=(7-5)g9=f9-f6=(5)d6,=>d6<>7
2)(2=7)h4-h6=a6-(7=2)c5,=>gi5<>2
3)(7=4)g5-i5=(4-8)i8=(8)g9,=>g9<>7
4)(9):e1=e6-h6=h2,=>d2<>9.UP=81
06/Jun/12 2:08 AM
Checking for predators!!
06/Jun/12 9:01 AM
Like sotir's
1. Unique possibilities to 32.
2. Whether c5=2;OR c5=7=h46=g9,f9=5=d6,h6=7;h46=2.UP33.
3. Whether g5=7;OR g5=4=i8,g9=8;h9=7.UP45.
4. Whether e1=9;OR e6=9=h2;d2=8.UP81.
06/Jun/12 5:31 PM
12,27
06/Jun/12 6:52 PM
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