Your goal is to find the secret four-color code. The following colors are possible: red, white, purple, brown, pink, yellow.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['white', 'brown', 'pink', 'yellow']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['red', 'white', 'white', 'brown']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
Guess: ['red', 'white', 'brown', 'pink']. Hint: four colors are in the secret code but in the wrong positions.
A B C D
red, brown, yellow, white yellow, pink, purple, pink brown, white, yellow, brown pink, red, white, brown