Feedback and Questions

Thanks Paul. I looked and an interesting strategy. I will have to add it. Not sure how useful it will be but a card in the hand for sure

Good questions. I have designed the site with programmers in mind – partly because some of the harder strategies are not at all easy for pen/paper solvers but are valid and interesting. But also because a lot of people like the challenge of solving puzzles logically in code. I intend that my docs should give enough information to work out how to make the algorithm. However since coding is the fun part I don’t post code. (really you just need the examples and the pattern stated clearly enough). My way is not the only way. Other people have other interesting/better ways. It is also not a race, so we’re not, as a world, trying to make the most optimal solution. But I do share bench-mark times using stock lists.

There is some code, the brute-force algorithm, for example, but that is because it is not original to me. Also, the packed-string code needs to be shared to be useful, and the front-end is readable javascript.

My biggest tip is to start simple. Don’t try and do everything. Second tip – I found it very useful to think about variants like Jigsaw and Sudoku X. These force you to generalise and be more abstract.

Tick "Auto Tab". I've noticed that peoples browser are dropping their settings for these tick boxes. Bit annoying

So it’s a pulldown list. Click on it?
Off is the normal condition where all information is provided. The strategy, the pattern and the eliminations.

You are not the first to point this out so I really should fix it!
I think it was recent when I changed the order of what gets drawn first but I cant remember why.
Version 2.34.2 should now display the yellow eliminated candidates
Hope I haven't created a knock on bug

Yes it's been a horrible few days. I've now removed the ad from the Sudoku solver.
Playwire are not investigating unless I provide an example myself so I have to sit and wait for one I did that yesterday and they removed a rogue advertiser but it's clearly more widespread. I do want to have a bare minimum and not clutter the place. No ads should be going out of their boundary

Yes I'm having a torrid time here trying to sort this out. I've removed the ad in a number of places
On Str8ts.com I've pushed it under the content. What page are you seeing the oversized ad on?
Apparently I need examples or Playwire wont fix it. I get one or two now and again
Will get fixed!

Sorry about this situation, not what I want at all. I see it is happening now on SudokuWiki.org. I have removed the under-menu side ad complete now. On str8ts.com I have move it down but need to keep it on to show Playwire. I expect they will get back to me later today. Thanks for alerting me.

Thanks for the alert
Must be a rogue advert. All I can do it alert Playwire who won't see it until Monday and by then it may well have been swapped out. In the meantime I've added some padding so it's moved down below the bottom of the player. Very annoying.

I get what you mean. However the groups of strategy that I have made for the solver are really just a way to split them up and display they have increasing order of complexity. Likewise the puzzles are quartiled for convienience. I allow some strategies in a higher category to be used in a lower grade strategy unless the score and strategy are very far apart. So I already filter away very tough bottlenecks on otherwise easy puzzles. But the grade of a puzzle consists of a more heuristics and weightings. I think if I followed your rule strictly only a few 1% of puzzles would get through the filter and they would be very samey. However AICs may not be necessary and you may find a better path