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Tough Sudoku for 16/February/2017

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

  1 2 3 4 5 6 7 8 9
Check out the latest post in the Sudoku Forum

Sudoku Solving Techniques

Submitted by: sudoku lover

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SE=7.2
16/Feb/17 12:06 AM
Interesting cycle consequences.
#1 SSTS to UP26
#2 cycle (1=8)b1-(8=)i2-(4=6)g2-g6=(6-1)6=b6-b2 -> -17,-4f2h,-6g35,-8f2,-349c6; UP81
16/Feb/17 3:14 AM
Oops - a typo on the only one that matters: -1b7. UP81.
16/Feb/17 3:35 AM
#27 1?@b7=>c6=1=>g6=6=>g2=4=>i2=8=>b2={}=>b7<>1 126@a79c7=>a79c7<>4 4@bc8=>h8<>4
#42 49@h45=>h13<>9
VHBC to #81
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal row More...
16/Feb/17 6:15 AM
lcls to 26
Another way to present Jim's loop:
Doubly linked ALS XZ rule
(13469)bdeg6-16-(1468)bgi2 =>-4 hi1.fh2, -8f2, -346c6, -1b7, -6g35; lclste
16/Feb/17 8:58 AM
1. Unique possibilities to 26.
2. Whether g2=6=c7,b6=1;OR g2=4,ib2=81;b7<>1.UP81.
16/Feb/17 11:16 AM
1:09:20
16/Feb/17 12:00 PM
9:10 with a couple of guesses, no possibilities.
16/Feb/17 12:47 PM
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