Bookmark function - save the state of the game while continuing to play

[GoogleCodeExporter]

While solving more difficult Sudoku puzzles, sometime you reach a point where 
the only thing you can do is go to one of the cells where you have narrowed the 
options down to 2 numbers, pick one of them, and see if it leads to solution. 
If would be useful if you could save the state of the game (including all your 
notes) before you make this guess so that if you choose the wrong number you 
can return to this place and choose the other number (which must be the correct 
number assuming you have not made any mistakes). Sometimes you even have to do 
this more than once, so multiple bookmarks would be useful. I have yet to see a 
Sudoku game implement this, but I would think if would be an obvious function 
to have. It really limits the fun of playing the more difficult games (and the 
point of playing the game on a computer) if you have to get out a pen and paper 
at this point to solve the game.

Original issue reported on code.google.com by saye...@gmail.com on 1 Jul 2010 at 8:47

[GoogleCodeExporter]

This has been implemented.  Look in the menu for checkpoints.  And yes, you can 
make multiple checkpoints.  But be aware that they aren't saved and see also 
issue 162.

Original comment by Samuel.S...@gmail.com on 31 Dec 2012 at 6:48