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Tough Sudoku for 8/February/2017

                 
                 
                 
                 
                 
                 
                 
                 
                 

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Check out the latest post in the Sudoku Forum

Sudoku Solving Techniques

Submitted by: sudoku lover

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SE=8.4
08/Feb/17 12:04 AM
lcls to 26
//SF (3)bfh258 =>-3b67, -3f27, -3h26
1. (2)f4=g4-g1=(2-7)i1=(7)f1 =>-7f4 up 27
2. (3)h5=b5-c6=(HP37-9)c79=c4-(9=58)h46 =>-8h5
3. (4)d9=e9-(4=3)e3-e7=(3-7)c7=(7)c9 =>-7d9
4. (2)i1=(2-4)i6=de6-f45=f3-(4=3)e3-e7=(3-7)c7=c9-h9=(7)h3 =>-7i1 up 30
5. More...
08/Feb/17 5:25 AM
Tough nut to crack. 1 SF, 6 AICs, 1 dynamic chain, 1 kraken
SE 8.4
SSTS to UP26
w Swordfish (3)ceg367 -> -3b67f37h36
#1 (7)f1=(7-2)i1=i6-d6=f4 -> -7f4; UP27.
#2 (7)c9=(7-3)c7=e7-(3=4)e3-f4=f45-de6=(4-2)i6=(2-7)i1=h3 -> -7h9; UP29.
#3 (7)c9=(7-4)d9=e0-(4=3)e7=c7 -> More...
08/Feb/17 12:23 PM
Typo: #3 (7)c9=(7-4)d9=e9-(4=3)e7=c7 -> -7c7; UP30.

e9, not e0.
Apologies.
09/Feb/17 6:09 AM
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