Timer
00:00:00
Start Pause Reset
5 Comments Previous / NextHelp

Tough Sudoku for 25/December/2018

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

Indicate which comments you would like to be able to see

Basics to UP = 31
1. (3)b9 = b4 - h4 = (3-4)h5 = c5 - c2 = d2 - (4=13)d38 => -3d9 , UP = 81
25/Dec/18 12:47 AM
1. Unique possibilities to 31.
2. Whether c5=4=b3,d38=13;OR h5=4,ac5=3;b9=3.UP81.
25/Dec/18 12:55 AM
Basics to 31
1.if h1=6 =>f1=1 f8=5 d3=4 c2=4 d2=6 d6=8 f4=4
g8=8 h7=5 h6=4 => b46c45<>4 =>i2=6 solve
25/Dec/18 3:40 AM
#32 3?@b4=>c8=3=>d8=1=>d3=4=>589@abe3=>8@gi2=>c2=4=>c5=8=>i5=5=>a5={}=>b4 <>3
NB/
#29 16@fh1 129@ghi9 8@e13
#30 58@g28 16@fh1=>2@ghi3
25/Dec/18 6:14 AM
20:21
25/Dec/18 8:28 AM
Please Log in to post a comment.

Not a member? Joining is quick and free. As a member you get heaps of benefits.

Join Now Login