Calcudoku puzzle forumhttps://www.calcudoku.org/forum/ Method: Guessinghttps://www.calcudoku.org/forum/viewtopic.php?f=3&t=5 Page 1 of 4

 Author: sneaklyfox  [ Sat May 14, 2011 5:28 pm ] Post subject: Method: Guessing When do you start guessing and how do you do it?Do you ever find that at one point of a difficult puzzle, it may be easier to systematically guess a number in a particular box than to find another logical answer?

 Author: pnm  [ Mon May 16, 2011 11:11 am ] Post subject: Re: Method: Guessing sneaklyfox wrote:When do you start guessing and how do you do it?I definitely use guessing when doing a timed puzzle... but I guess that's not what you mean

 Author: maartensmit  [ Mon May 16, 2011 7:22 pm ] Post subject: Re: Method: Guessing I always look for a logical continuation. If I can't find one, I do start looking for trains of thought like 'what happens when I put a 4 in that square', but I always do that in my head. I'm not sure if that falls in the category 'guessing' As soon as I need to guess a number and see what happens, I just accept that either I have missed some easy continuation, or this puzzle is just too difficult for me and I move on.

 Author: picklepep  [ Tue May 17, 2011 6:20 am ] Post subject: Re: Method: Guessing i hate guessing, but occasionally it's called for when there's no easy logicing to be done. When I'm guessing I usually look for a spot in the puzzle that has the fewest number of possibilities, while also opening the puzzle up the most.

 Author: maartensmit  [ Tue May 17, 2011 7:41 am ] Post subject: Re: Method: Guessing picklepep wrote:i hate guessing, but occasionally it's called for when there's no easy logicing to be done. When I'm guessing I usually look for a spot in the puzzle that has the fewest number of possibilities, while also opening the puzzle up the most.This might be some people's solving strategy, but I think it kind of defeats the purpose of the puzzle, namely to use logical reasoning to find out how the numbers should be filled into the puzzle. Guessing says to me 'This puzzle is too hard for me to solve using logical reasoning, and I'm too lazy to keep searching'.Also, when guessing a number, all but one possibility have to be wrong. After all, the puzzle has one unique solution. Therefore, it should be possible to find out in your head why this possibility works and why the other one doesn't. If they both work, just keep searching. There has to be something wrong with one of them.

 Author: richr  [ Tue May 17, 2011 7:07 pm ] Post subject: Re: Method: Guessing I use guessing as a last resort, but I do use it when I can't find (especially late in the day) a logical link. I find the 9x9 patterns the most difficult.

 Author: sneaklyfox  [ Wed May 18, 2011 2:45 am ] Post subject: Re: Method: Guessing maartensmit wrote:This might be some people's solving strategy, but I think it kind of defeats the purpose of the puzzle, namely to use logical reasoning to find out how the numbers should be filled into the puzzle. Guessing says to me 'This puzzle is too hard for me to solve using logical reasoning, and I'm too lazy to keep searching'.You seem to think that guessing has nothing to do with logic. Earlier, you said that you do ask yourself what would happen if you put a certain number in a box. You said you do it in your head. So that counts as logic? But if someone doesn't want to keep all the numbers in their head so writes it down as a "guess" then it's not logical anymore? I don't think guessing necessarily means you don't use logical reasoning.Anyway, in my point of view, the purpose of the puzzle is to solve it using your brain and whatever method works though some methods may be better than others.