Logic Puzzle Forums Pencil in answer
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#1
11-08-2016, 10:08 AM
 LeicesterH Junior Member Join Date: Oct 2016 Posts: 2

Hi
My first post so please be gentle!

Tutorial says that you never have to guess but sometimes it useful to guess and pencil in an mark on the grid to see where it leads.

So how do you pencil in a mark to distinguish it from marks that you're sure about ?

TIA, H
#2
11-08-2016, 10:31 AM
 Mule Junior Member Join Date: Aug 2015 Posts: 7

Well , you can't actually pencil . What I do is fix in my mind where my 'pencil' mark is and if it doesn't work I just press "Undo" until it disappears .
#3
11-10-2016, 02:49 PM
 pcuser Senior Member Join Date: Nov 2009 Posts: 164

If you are playing online, make your positive guess. Then proceed with the puzzle. If it works, you guessed correctly. If you run into a contradiction, hit undo and back up to the guess and select the other option. This is really a form of logic to solve these and math proofs as well.
#4
11-16-2016, 11:58 AM
 kgf Junior Member Join Date: Jul 2012 Posts: 15

Quote:
 Originally Posted by Mule Well , you can't actually pencil . What I do is fix in my mind where my 'pencil' mark is and if it doesn't work I just press "Undo" until it disappears .
Agree, you just have to remember which choice you made that started the "unknown" sequence.
#5
11-24-2016, 10:01 AM
 LeicesterH Junior Member Join Date: Oct 2016 Posts: 2

OK - Ta - just thought i might be missing a trick.

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