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Tough Sudoku for 9/July/2012

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

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Check out the latest post in the Sudoku Forum

Sudoku Solving Techniques

Submitted by: sudoku lover

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Site Puzzle
#0 h-wing (2=1)f4-(1=7)d6-e4=b4 => b4<>2
// skyscraper(6)f95/h96 => e6<>6,g5<>6
#1 (12=7)fd9-(7=1)d6-f4=f9 => bcei9<>1
// s-wing(15) (1)b8=b1-(1=5)c2-c6=b6 => b8<>5
// xy-chain (17)b8,(78)b4,(89)h4,(91)g4 => g8<>1
09/Jul/12 1:14 AM
Tough!!!!
09/Jul/12 7:19 AM
SE=7.7
1)FXW(6):h56=h9-f9=f5,=>g5<>6
2)(7)b4=e4-(7=1)d6-(1=2)f4,=>b4<>2
3)(1)e2 1=(1-2)d1=d9-(2=1)f9,=>e789<>1
4)(1):d6=i6-i7=c7-b8=b1,=>d1<>1
5)(3)b9=a7-(3=5)a 3-(5=1)c2-c7=i7-(1=8)i6-c6=(8)c9,=>b9<>8
6)(1)d6=i6-i7=c7-(1=5)c2-(5=7)c6,=>d6<>7 .UP=81
09/Jul/12 6:40 PM
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