Flotter Otter (a.k.a. Otter Dam) is a pattern recognition game with multiple right answers per card, each of which translates to differently stacked colorful bricks. Each round you reveal one new card for all players. You can order the objects shown on each card in two different ways, e.g. clocks might have varying sizes and display different times of the day. Since your bricks correspond with the unique colors of the objects on the card you can show one of the two possible solutions by stacking your bricks. The faster you are, the better — so long as you don't make a mistake. This also means that it is smart never to give up early, even in rounds when you seem to be lagging behind.