This is because the 2 we added in step 3 rules out the 2 from appearing in the middle column of the box. Likewise, the two given 2s in top middle and right boxes also rule out the first two rows of the top left box from containing a 2. Note: Not every time you add a new number to the grid will reveal a cell.
It works by removing candidates. This means that 8 which is also in the two blue buddy blocks. If your not sure why check the next picture. It's called simple sudoku. The things i like about it is the hints and the show candidates feature. The hint tells you the method to use not the number.
And the show candidates feature show all the possible answer for each block and you can remove any candidate from a cell. It is just repeated for each square and written in. Thanks for reading my instructable, If you have any questions or know bout any technique i haven't included please add a comment. I believe I didn't copy anything directly from a site and i you spot that i have then i will rectify the problem.
I used wikipedia,simple sudoku and brainbashers for information. Reply 11 months ago. Thank you for explaining how this game works. I've wanted to understand this Tip 2 years ago on Introduction. At first I thought anyone playing this game would have to be nuts but as I worked though my second game I was hooked. The added distractions of the workout and rock music limit me to no more than 3 games per session. I now love Sudoku. Sudoku is a fun game to get into. I will demonstrate several solving techniques so you get a feeling for how to fill in numbers.
What I am explaining here are the highlights. Finding these highlights. As you are just starting out, the searching part will take some time, but do try to persevere and not become frustrated. The very first technique we will use is some times called "hidden singles. Notice that the three in this 3x3 box is not filled in. Now look at the two 3x3 boxes above this 3x3 box and see that the three is filled in each of them. Remember that the cardinal rule is that there must be exactly one of each number is every row, column and 3x3 box.
This means that the bottom 3x3 box needs to have its three filled in, and that its three cannot be in the same columns as the threes in the two 3x3 boxes above. Looking at Figure 3, we see the left and center columns in the bottom 3x3 box cannot contain the required three and in the right column two of the three cells are already filled. So the three must go in the bottom right corner of this 3x3 box as seen in Figure 3. Using this same logic, look at the 3x3 box in the bottom right of the puzzle.
Notice that the nine is not filled in yet. Now look at the two 3x3 boxes above and see that the center and right columns of each of these boxes have nines in them. Looking back at the bottom 3x3 box we see that the nine can not be in the center or right columns, and two of the left columns are already filled.
So, as this logic illustrates in Figure 4, the nine must be in the upper left cell of this 3x3 box. One more time, this time looking at the upper left 3x3 box, see that the four is not filled in. Now look at the two 3x3 boxes below this and see that each one has a four filled in; one is in the first column, and the other in the second column.
Looking back at the top 3x3 box, the four must go in the one open cell in the third column, as show in Figure 5. This same logic applies to filling in the two in the center left 3x3 box as seen in Figure 6. This time notice that the positions of twos in the 3x3 boxes above and below are taken into account. Note that all of the above cells could have been done in any order. And although I have pointed out these instances of filling in cells very rapidly, I found them by slowly and methodically going through all the numbers in all of the 3x3 boxes.
For more information or to change your preferences at any time go to the Cookie Policy. Cookies are small pieces of text sent to your web browser that assist us in providing our Services according to the purposes described. A cookie file is stored in your web browser and allows our Services or a third-party to recognize you and make your next visit easier and the Service more useful to you. Some of the purposes for which Cookies are installed may also require the User's consent.
Cookies can be "persistent" or "session" cookies. Persistent cookies remain on your personal computer or mobile device when you go offline, while session cookies are deleted as soon as you close your web browser.
Functional cookies are set to recognise you when you return to our Website, set up your consent settings, and embed functionality from third party services. Also, these cookies enable us to personalise our content for you and remember your last game progress. These cookies are necessary for the functionality of the Website. You may set your browser to block these cookies, but the Website will not function properly without them.
0コメント