Created attachment 151664 [details] Example screenshot of unwinnable state. As the screenshot shows the solver in the game Grandfather shows "This game is winnable" while it is obviously not
Can you please save the game and attach the saved file here when that happens?
@Albert : I dont know this version of game ( i mean grandfather) but when i follow this steps it looks like game is cheating to win. 1 - Start kpatience 2 - Ctrl + D to start deal 3 - enter 1217635303 as deal number 4- Pres demo button and wait until step 79 5 - step 80 is an illegal move pause and undo move 6- it is not possible to do same step ( 80 )
Created attachment 151675 [details] Game file Here the requested saved game. This is just an obvious example of a bug that seems to appear often.
*** This bug has been marked as a duplicate of bug 403564 ***
https://docs.kde.org/stable5/en/kpat/kpat/rules-specific.html#grandfather says "If there are no more possible moves, you can redeal the cards." - and that's what Move 80 is. You can trigger it from the toolbar.
Not actually a duplicate