Timer
00:00:00
Sudoku Sudoku

Help

Submit your own Pic! 15 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

I have an oven and a microwave for sale.

Submitted by: Sale Sale Sale

Indicate which comments you would like to be able to see

Hello all!! I have blogged today's tough puzzle. The link to the page can be found in the far right column, at the top, under "Check out the Sudoku Blog".

Today's puzzle serves as a useful example of at least one fairly easy technique.
15/Jun/09 11:11 PM
 |  |

Looks like spokes of a wheel. A new invention of the wheel... a wheel of learning?
16/Jun/09 12:19 AM
 |  |
What a sense of power the Reference Librarian seated at the center of the hub must feel!
16/Jun/09 12:24 AM
 |  |
Great photo! Have a nice day/night, everyone!
16/Jun/09 12:28 AM
 |  |
16:19 to you all from Beijing.
16/Jun/09 1:01 AM
 |  |

It looks like a beautiful library!
16/Jun/09 8:26 AM
 |  |
1. Unique possibilities:b8=6=d1.(UP 24)
2. If b3=3,b5=5.Likewise d3=3,e5=3,pairs 29 at ac5;13 at ci6 makes b5=5.h6=4,h3=9.(UP 27).
3. If d3=3,e5=3.If e2=3,b3=3,e8=1,pair 13 at ac7.Now if d3=2,e5=2, and if d3=7,b7=7,b4=9=e5.So e5=239;triple 239 at ace5;i5=5=h2,g5=8,h4=6.(UP31).
4(a). If More...
16/Jun/09 9:45 AM
 |  |
In 4(a),after f7=2=c6, row 7 is already devoid of 4,proving d3 is not 2.

Hi Steve.In your blog,after you show d3=3,f2 becomes 7,so you reach UP52 (not 51).It doesn't effect the rest of the proof however.Regards,Alfred.
16/Jun/09 10:54 AM
 |  |
Thanks for taking the time to read my blog, Alfred!
I think that I would need to execute another step, albeit easy, to get to UP 52. For example, hidden pair 59 at ef1, would do the trick. Of course, so would naked pair 12 at e2f3. Often in the blog, some easy and/or superfluous steps are not taken in order to attempt to make the page shorter.
16/Jun/09 1:46 PM
 |  |
Taken from the nose-bleed section!
16/Jun/09 3:16 PM
 |  |
Look how empty it is. Everybody is at home using Internet.
16/Jun/09 4:03 PM
 |  |

I've been there - it's so quiet! The Librarian at the centre is ever vigilant, checking for misdemeanours - people talking, writing on books, chewing gum - a very scary place! (Of course this was 35years ago - it may have changed)
And not an Ape in sight! ;)
16/Jun/09 5:26 PM
 |  |
Another alternative:
1)Start at 22,=>UP=24
2)YW-style (bd3=3):(59=3)df4-d3=b3-(3=5)b6,=>b4df6<>5.UP=27
3)Loop:(5)e12=f12-(5=9)f4-d4=d89-(9=5)e9, =>e58f9<>59,ab4<>9.UP=36
4)YW-style (de8=2):(3=2)d3-d8=(2-1)e8=(1)e2,=>e2<>3.UP=52
5)(1)e2=e8-a8=(1-3)a7=c7-(3=2)c2,=>e2< ;>2.UP=81
16/Jun/09 11:32 PM
 |  |

SE=8.3
09/Sep/10 10:47 PM
 |  |
1.SSTS to UP=24
2.{(9=5)e9-d89=d46-(5=9)f4-SF:bdh234=d89} => e58|f239|a4<>9, e58|f69<>5

UP=35
3.(2=1)e8-(148=2)f679 => e5<>2 UP=52
4.(2=1)e8-a8=(1-3)a7=a2-(3=2)c2 => e2<>2 UP=81.
17/Jan/11 11:55 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!
Do you like traveling? Check out this page on Airlie Beach to Narrandera-Leeton flights. It is something new from us and we hope you like it.
Welcome our latest Members
kjgood1 from YYC
samarata1 from uk
catwalk1950 from Sarasota Florida
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.
30 Dollar Date Night - Date Ideas for Savvy Partners.
Pumpkin Carving Pattern Free halloween pumpkin carving patterns.