There are four box to find the right colors. Click on the boxes and choose color drop-down list. Guess the color of the boxes, and click OK button.
If the color you guess is correct and in the right position the result will be correct. If the color you guess is correct and in the wrong position the result will be incorrect.
For example: Find the desired colors are Red, Yellow, Blue, Red, and Blue, Red, Blue, Yellow is guessed, the result is one correct (blue), 2 incorrect (red, yellow).
Continue until you find the right colors and position.