This is a very simple puzzle. Pour the water to make 4 liters. Press 1 to fill water in bucket 1 (the smaller one) Press 2 to empty water in bucket 1 Press 3 to fill water in bucket 2 (the bigger one) Press 4 to empty water in bucket 2 Press left and right arrow keys to pour water.
This is a famous puzzle so you probably heard of it. You can also try and make 1 liter or 2 liters
