The game creates a combination of four colors and hides it at the top of the game board. Your challenge is to guess this color code by trying out different color combinations.
If you see a black dot, then you set a color pin on a correct spot in the code.
If you see a white dot, then you set a color pin on a wrong spot in the code - but the color is in the code.
If you dont see any black or white dots, then your code contains no valid colors. And remember: a black or white dot tells nothing about the position of your pin in the code.
One black pin means that one pin correct placed. Three black pins mean that three pins are correct placed (the fourth pin cant be white). Two black pins and to white pins mean that two colors are correct, the other two are at a wrong position (and must be swapped).