MOBILE COMPATIBLE! There are 9 balls, and only one is lighter. The goal is to find which one is lighter by weighing them. You can only way them twice! How to play: Click/tap everything to make them work. There is a toggle switch for eliminate mode at the top. In eliminate mode, click a ball to select it. It will ask you if you want to eliminate it or not. In normal mode, you can click nevermind to not do anything, or you can add it to scale 1 or 2. Clicking “choose this one” means you have decided that that ball is the lighter one. Once scale 1 and scale 2 have the same amount, you can weigh them. If they are yellow, they are the same. If they are different, green is lighter, and orange is heavier. It will put you into eliminate mode until you click done. There is a way to do it guaranteed every time!
V Solution below V !Do not look unless you are stuck! Put 3 balls onto scale one. Then put 3 balls onto scale two. Now click weigh. If they are even, eliminate all the ones that you selected. If not, then eliminate all the ones you did not select and the ones that are heavier. Then click done. Now you should have 3 balls left. add 1 ball to scale one and 1 to scale two. Then click weigh. If they are even, eliminate the two that you selected. If not, then eliminate the one you didn’t select and the one that's heavier. You should only have one ball left. Select that one, and click choose this one. You win!