With the new capabilities of Lambda Functions, Dynamic Spill Arrays, and Recursion, Excel can actually solve ANY sudoku puzzle using only Formulas! (No macros/VBA). If you have the Add-On "Advanced Formula Environment" installed, you can add my Lambda Function to a module very easily using my GitHub Gist url:
I really enjoy your xml macro.,
btw I wanna make a cross check opname similarly your sudoku apps, but little different., there are 8 branches that are going to examine each other every month (by coloumn) randomly.,
Sudoku Excel
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New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 242nd installment in their series of digital spreadsheet magic tricks, you'll learn how to create a sudoku puzzle using array formulas, the INDEX function with criteria and data validation.
Thanks Chandoo..I missed this post of yours.
1) Just as I did this, I was pretty much interested in creating an excel that could generate SUDOKU puzzles.
2) I haven't tried more than 10 iterations..but yes, more difficult problems would get solved if you increase the iterations in the code.
The simplicity of the rules make it easy for beginners, however, it is not easy for many when they search online for free sudoku puzzles and they are not able to solve it, like the one present on this page.
The satisfaction of completing a puzzle may be another reason why, although in many cases we do not have the ability to solve them.We improve our skills as we play.
Sudoku is a popular numbers game that anyone can learn to play- adults, teenagers, and even kids. Whether as a pastime or a learning exercise, sudoku is both a challenging and entertaining activity for a lot of people.
Note: If you are looking for a place to do Sudoku online, need a sudoku for your palm or other pda, or if you want a Sudoku solver, you should take a look at the links at the bottom of this page. My personal favorite is Andrew Stuart's Sudoku Solver because you can solve the Suduku puzzles step-by-step and choose what strategies you want the solver to use.
These sudoku grids are different from other grids you will find on hundreds of other websites. I can usually do sudoku puzzles faster if I am organized about where I place my pencil marks to indicate what the possible numbers are for a particular cell in the grid. So, these grids have 10 little boxes above each of the cells for writing in the candidate numbers. Of course, you only need 9 at the most, but an extra won't hurt if you like to use a pen or don't want to waste your eraser. A mechanical pencil works great. The image below shows an example grid with the extra boxes.
Once I ran into your GitHub account and I saw the sudoku repo I didn't open it though because I don't like spoilers hahaha so I decided to make my own sudoku solver that like your first version only solve easy ones...I tested it using the Gnome sudoku from ubuntu 14.04 and It solves easy and medium level of difficultly this is the repo github.com/lmbarr/sudoku-solver
Amazing, the sudoku part almost exactly mirrors my experience.
I first wrote it in javascript, with sets of possible numbers for every cell and human-like non-destructive transforms being applied (only answers we are sure about). There were quite a few different transforms, because I picked a modified version of Sudoku which had these additional blob sum constraints, which were interesting because they were indeed sums and not sets of the [1,9] range.
For the UI, it used Vue, but really the renderer was mostly handwritten svg. It solved the lesser difficulties, but then I got bored.
Later, I stumbled upon someone quoting the backtracking algorithm as described in wikipedia. So I implemented it in Rust, with the additional constraints. The first time I wrote it, it solved them all in negligible time. I also tried it 3x4 and 4x4 boards. 4x4 gave noticeable time, and anything above 4x4 took too long to run.
Perhaps applying human-like transforms is computationally valuable at bigger board sizes to reduce the iteration space dramatically.
Maybe I'll still port those, or make the rust code an API or a WASM embed to the UI. Probably not though.
Another one! I wasn't given a Sudoku solver to do as part of a class (I trained in engineering), but have done one recently simply because it's really interesting. Pretty sure this one is efficient (github.com/rantydave/sudoku), took a lot longer than a couple of hours :)
Not saying that the code is inefficient, but I've created an algorithm which will solve the sudoku puzzle like we humans do (i.e. there would be no hit and trial of numbers). I wanted to make my own sudoku puzzle and solve it, but the thing is I couldn't make the question set. Whenever my algorithm would finish placing the numbers, it always turned out that a number was present twice in its undesired area. Help anyone?
I noticed this same problem. Thank you for articulating it. I was very happy to have learned about the IFS statement, since it cleaned up formulas quite a bit, but when writing a sudoku solver LAMBDA that recursively looks for new logical values to fill in each recursion loop, I found that I was forced to nest my IF statements, or the program froze (endless looping I presume). I would love an IFS that ceased to check subsequent conditions after the first satisfied condition was found.
You can not delete link parts of this Excel file, or sell or share this Excel file. If anyone needs it please refer that individual to my Gumroad store or Excel Macro Fun blog.
-sudoku-generator.html
Beyond the purely ludic and mathematical aspects of sudoku, this code demonstrates how to set up dimensions, cubes, views, cell formating, security at elements and cells levels all through Turbo Integrator in just one process.
Thanks to this application, you can demonstrate your TM1 ROI: none of your company employees will need to shell out 1 ever again for their daily sudoku from the Times.
Alternatively, you could move your users to a "probation" group before they start their shift. It is only by completing successfully the sudoku that the users will be moved back to their original group.
This way you can insure your company employees are mentally fit to carry out changes to the budget, especially after last evening ethylic abuses down the pub.
The algorithm provided to generate the sudoku could be quickly modified to solve by brute force any sudoku. Provided the sudoku grid is valid, it will find the solution, however some sudokus with too many empty cells will have more than one solution.
The sum of the numbers in the white squares surrounding each shaded square must equal the number in that shaded square. Only numbers from 1 to 7. Numbers can't repeat in any given row or column (like sudoku).
Due to the phenomenon of "involution" in China, the current generation of college and university students are experiencing escalating levels of stress, both academically and within their families. Extensive research has shown a strong correlation between heightened stress levels and overall well-being decline. Therefore, monitoring students' stress levels is crucial for improving their well-being in educational institutions and at home. Previous studies have primarily focused on recognizing emotions and detecting stress using physiological signals like ECG and EEG. However, these studies often relied on video clips to induce various emotional states, which may not be suitable for university students who already face additional stress to excel academically. In this study, a series of experiments were conducted to evaluate students' stress levels by engaging them in playing Sudoku games under different distracting conditions. The collected physiological signals, including PPG, ECG, and EEG, were analyzed using enhanced models such as LRCN and self-supervised CNN to assess stress levels. The outcomes were compared with participants' self-reported stress levels after the experiments. The findings demonstrate that the enhanced models presented in this study exhibit a high level of proficiency in assessing stress levels. Notably, when subjects were presented with Sudoku-solving tasks accompanied by noisy or discordant audio, the models achieved an impressive accuracy rate of 95.13% and an F1-score of 93.72%. Additionally, when subjects engaged in Sudoku-solving activities with another individual monitoring the process, the models achieved a commendable accuracy rate of 97.76% and an F1-score of 96.67%. Finally, under comforting conditions, the models achieved an exceptional accuracy rate of 98.78% with an F1-score of 95.39%. 2351a5e196
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