Timer
00:00:00
Sudoku Sudoku

Help

Submit your own Pic! 10 Comments
Play this pic as a Jigsaw
or Sliding Puzzle
Previous / Next
Play sudoku on your site/blog

                 
                 
                 
                 
                 
                 
                 
                 
                 
Choose a number, and place it in the grid above.
  1 2 3 4 5 6 7 8 9
This number is a possibility
Automatically remove Possibilities
Allow incorrect Moves
Clicking the playing grid places the current number
Highlight Current Square
Grey out Used Numbers
Possibilities in Grid Format
Check out the latest post in the Sudoku Forum

BREAKING NEWS

Submitted by: uno hu

Indicate which comments you would like to be able to see

1. Note a6b5=16.Unique possibilities to 31.
2. Whether c6=3;OR c5=3,c8=4(or else 27 Unresolvable Rectangle @ bc48);i6=4.UP33.
3. Whether i3=1,ah3=59;OR i3=5,i4=9,g6=8,i12=16,g2=7;OR i3=9,a37=56,d7=7;e3=7.UP38.
4. Whether i4=9=a3;OR i13=9;h3=2.UP81.
04/Feb/17 2:43 AM
 |  |
Standard techniques up 31
1. (6)i7=i12-(6=587)cgh2=(7)d7 =>-6d7 up33
2. (3)i7=(3-4)i6=c6-a4=[9a4-9c46]=(9-8)c1=(8-2)g1=h3-h7=(2)e7 =>-3e7 up 34
3. (5=3)h7-i7=(3-4)i6=c6-(4=9)a4-(9=5)a3 =>-5a7, -5h3
4. (2)h3=(28-9)cg1=(9)i1 =>-9h3 up 49
5. (3=49)a48-(9)a3=(9-8)c1=g1-g6=(8-9)h6=(9)h8 =>-3h8 up 81
04/Feb/17 3:24 AM
 |  |
Hi Alfred, very neat and nice UR. But for me it leads to 40 solved cells (details below)
Standard techniques up 31
1. UR(27)bc48 =>4c48==9c4 (using internals)
//(4)c48=(9)c4-(9=4)a4 =>-4c6 up 40
2. XW (9)a3=a4-i4=i13 =>-9h3; stte

lcls techniques following More...
04/Feb/17 4:30 AM
 |  |
Very unusual plant, Kate.
04/Feb/17 6:00 AM
 |  |
As Alfred's:
SSTS
1)AUR(27)bc48:(4)c8=(7*-3)c5=(3)c6,=>c8<>7,c6<>4
2)(2=9)h3-(9=6)i1- (6=2)f1,=>f3<>2.UP=81
04/Feb/17 7:35 AM
 |  |
#27 134@b123=>b5<>1
#32 7?@h3=>g1=2=>c1=8=>{i1=9,a3=9=>i3=5=>i4=4}=>a4={}=>h3<>7 3@c56=>c8<>3
#34 1@i123=>h3<>1 1?@i3=>b3=4=>f3=2=>g1=2=>c1=8=>{i1=9,c2=5=>i2=6=>a7=6=>a9=5,a3=9=>a4=4=&G More...
04/Feb/17 7:38 AM
 |  |
Hi cenoman. Thanks for the explanation, which makes my step 3 unecessary.I missed the 578 triple in row 2.
Best regards, Alfred.
04/Feb/17 7:50 AM
 |  |

14:41 With a very long break (paused it) between start and finish. Rang my sister-in-law.
04/Feb/17 2:09 PM
 |  |

Yay, Tough is back.
04/Feb/17 5:02 PM
 |  |
18:34
05/Feb/17 9:27 AM
 |  |
Please Log in to post a comment.

Not a member? Joining is quick and free.
As a member you get heaps of benefits.
Click Here to join.
You can also try the Chatroom (No one chatting right now - why not start something? )
Check out the Sudoku Blog     Subscribe
EasyMediumHardTough
Or try the Kids Sudokus (4x4 & 6x6)
Printer Friendly versions:
Members Get Goodies!
Become a member and get heaps of stuff, including: stand-alone sudoku game, online solving tools, save your times, smilies and more!
Welcome our latest Members
Maggie from United States
Aillas from Melbourne
Jane from Sunshine Coast
Member's Birthdays Today
None Today.
Friends currently online
Want to see when your friends are online? Become a member for free.

Network Sites

Melbourne Bars Find the Hidden Bars of Melbourne
Free Crossword Puzzles Play online or print them out. 2 new crosswords daily.
Jigsaw Puzzles Play online jigsaw puzzles for free, with new pictures everyday
Sliding Puzzle Play online with your own photos
Flickr Sudoku Play sudoku with pictures from Flickr
Kakuro Play Kakuro online!
Wordoku Free Wordoku puzzles everyday.
Purely Facts Test your General Knowledge.
Pumpkin Carving Pattern Free halloween pumpkin carving patterns.