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Tough Sudoku for 6/June/2016

                 
                 
                 
                 
                 
                 
                 
                 
                 

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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That's different.
06/Jun/16 12:12 AM
18:28
06/Jun/16 1:45 AM
Standard techniques UP 30
1. (3)f5=f4-(3=7)a4-a2=(7-4)b2=(4-6)e2=(6)e5 =>-6f5 UP 40
2. UR(23)@ei79 =>i9=9 UP 81
06/Jun/16 3:11 AM
UP30; [3a4=(3-5)f4=XWing(5eh47)-(5=4)e3-4e2=(4-7)b2=7a2]-(7=3)a4; UP81
06/Jun/16 3:57 AM
or
UP30; Swordfish{5d568, 5eh7, 5hfe4} -> -{5efh58, 5e6}
[3a7=(3-5)f4=5f1-5e3=(5-4)b3=(4-7)b2=7a2]-(7=3)a4; UP81
06/Jun/16 4:04 AM
Mad hatters enjoying a bonfire. Good one Robin.
06/Jun/16 4:06 AM
1. Unique possibilities to 30.
2. Whether f1=5,b1=1;OR e3=5=h7,e25=46,d5=2,h4=9=f12=b5;a5=1.UP81.
06/Jun/16 6:40 AM
Time to hang my hat and head to bed..night all
06/Jun/16 10:55 PM
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