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

Tough Sudoku for 25/October/2014

                 
                 
                 
                 
                 
                 
                 
                 
                 

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

SE=7.3 UP to 26
1)2-Chain Logic:(5)g1=(138)abg7=(1472)c3689 or (5)b1-c2=(5)c5 => b1<>8,c5<>1472 (or-rule) UP=81
25/Oct/14 12:41 AM
Fuzzy! I bet it does look like snow!
25/Oct/14 1:03 AM
UP26; [8c2=8c89-(8=125)abg7-5h9=5h2]-5c2=5c5; UP81
25/Oct/14 1:13 AM
Typo ...
UP26; [8c2=8c89-(8=135)abg7-5h9=5h2]-5c2=5c5; UP81
25/Oct/14 1:31 AM
Like the others:
1. Unique possibilities to 26.
2. Whether b7=8=c2;OR b7=3,ag7=15,h2=5;c5=5.UP81.
25/Oct/14 2:27 AM
Imagine... this lovely flower is actually on a tree - an entire tree in blossom must be quite spectacular! Its name (flaxleaf paperbark) should have given me a clue, but it didn't!
25/Oct/14 10:31 AM
Lovely shot Kate! One of my favourite melaleucas!
25/Oct/14 1:00 PM
(27) 8?@b1=>[g1=5&b7=3=>a7=1]=>g7={}=>b1<>8
9?@e2=>[a3=9=>c3=7&b8=9=> c8=7]=>e2<>9
(29) 5?@c2=>[g1=5&b2=8=>b7=3=>a7=1]=>c2<>5
VHBC to (81)
V:Only cell left in Vertical column for this More...
25/Oct/14 3:33 PM
Hi Les, to solve this one, it is enough to just test for 5@c2. After c2=5,c89=8,b7=3, a7=1,g7=5; and Box H2 is devoid of 5. So c5=5.UP81.

Best Regards, Alfred.
25/Oct/14 7:33 PM
Thanks again Alfred.
Too many visitors.
Cheers Les.
26/Oct/14 7:43 AM
(27) 8?@b1=>[g1=5&b7=3=>a7=1]=>g7={}=>b1<>8
5?@c2=>[g1=5&b2=8=>b7=3=> a7=1]=>g7={}=>c2<>5
VHBC to (81)
V:Only cell left in Vertical column for this candidate
H:Only cell left in Horizontal row for this More...
28/Oct/14 7:00 AM
Alfred I am not sure what Box H2 means.
28/Oct/14 7:02 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