Finding out how much you will win
When you enter the mini game (3, 4 or 5 treasure chests), you can actually find out how much you will win without clicking on any of the map pieces. This means that the amount you win from the mini game doesn’t depend on which map pieces you choose.
To find out how much you are going to get without clicking on any of the map pieces, look at the amount of np you have in the slot game screen, then go to any part of Neopets website and refresh. Find the difference in np between what the slot game screen shows and what the website shows (just right below the banner). – toby_the_pet