WaterBottle

Keep only one color of water in a bottle

Keep only one color of water in each bottle.

Start with multiple colors of water in each bottle.

Step by step, pour out the water, repeating this process until only one color of water remains in each bottle.

Think carefully about the specific steps; the more you think, the faster you'll likely complete the level.

Finally, you'll have cleared the level when all bottles have only one color of water.