Sudoku Sudoku


Submit your own Pic! 43 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

Welcome to the Sudoku Forums!

Submitted by: Gath

Indicate which comments you would like to be able to see

1 2 Next
hi GG
see tips to set the solution by reasoning on
Have fun
 |  |
Yes, gb, and thanx again...
I entered that comment yesterday, before you and pk gave me directions where to look...
 |  |
13:17 Guessed at 3 spots.
 |  |
26:00 - Fastest ever.
 |  |
 |  |
What exactly is X wing?
I tried it (the way I think it goes, but I don't understand reasoning behind it), however it didn't work in one case. Are the numbers on one side allowed to be in the same block, or does it have to be different blocks?
 |  |
can always do all levels in less than 5 min. using cheat of not allowing incorrect moves
 |  |
No, jc!

You can do all levels in less than 5 seconds:
- do 'show solution'
- take a number out
- put the same number in again

and presto! (or bingo, if you prefer...)
 |  |
First tough one I've solved. Don't like to think how many turns it took. First time I've used X-wing technique - I still don't understand the logic of it but it seemed to work?!?
 |  |
nice snowman...
 |  |
 |  |
sorry...6 mins 30 secs so proud.......only been playin for 3 weeks
 |  |
Is anybody going to answer BW from Perth and explain what 'x wing' is? Keen to know also.
 |  |
For people interested to learn X-wing and other solving tricks, check this out:
 |  |
yay. so happy. pb of 18:54. x]
 |  |
is a downloadable program which makes understanding the techniques much easier - if you are stuck you can use the 'hint' button and it explains the technique you can use.
 |  |
New pictures!!!!!!!
 |  |
18:03 for Tough - happy with that... no guessing required
 |  |
Absolutely no guessing required. No X-wing required. This site is great!
 |  |
Finished in 7:00 exactly. First Tough with no guessing. Thanks to some of you who have posted links to sites that explain the mathmatical theory behind certain techniques like the X wing and others. Anybody faster today?
 |  |
27:45 ug, i had to guess once on this. i usually don't do these tough ones because i have trouble doing the whole thing without guessing
 |  |
an undo button would be nice.
 |  |
I won't build a snowman while I'm in Madrid...
 |  |
Again to solve this puzzle with logic (no guesses), I had to use the fact that the solution is unique (2nd time using the 'unique' logic) - this still seems like 'cheating' to me.
 |  |
5.27 Getting better
 |  |
27:03 I had to use check moves twice. Yes, what is 'x-wing'?
 |  |
Hi, Steve
This has already been discussed here. My opinion is that the problem we face is : 'How many solutions has this puzzle?', the answer, often being 'one and only one', has to be proven. And not 'Fill the grid with every number appearing etc, knowing that the solution is unique' which would be another puzzle. So, the proof of unique solution can't use... uniqueness of solution!!!
 |  |
got stuck realised from gb website that I had missed an easy elimination - thanx gb - time of 17:45 not really valid because I paused time while I check gb site
 |  |
That X wing thing is insane! It knid of feels like cheating though because I don't understand why it works. Perhaps I'll look into it...
 |  |
Try unchecking 'Automatically remove Possibilities' AND checking 'Allow
incorrect Moves', also, never click on
'Check Moves'
 |  |
All x-wing does is eliminate other possibilities by identifying two digits in given rows and columns that are interchangeable only with each other. Some people say on some Sudoku's that you must guess at some stage but if there is always only one solution you should never need to guess if you can visualise enough moves into the future. Agree?
 |  |
 |  |
wow, I don't care how good some of you guys are but to finally solve a tough without guessing sure feels good!!
 |  |
You guys are so fast. It takes me longer to fill in all the 'possibilities' than it does for you to solve the puzzle.
 |  |
 |  |
 |  |
 |  |
 |  |
 |  |
Mar. 6, 2007.
 |  |
1 2 Next
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
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
Gideon from Enugu state
hiddlydiddly from Australia
gugukaja from Jakarta
Member's Birthdays Today
Amelia from Medowie, Arachnid from Whoknowsnotwhere, Jay from Pontefract
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.