Your goal is to find the secret four-color code. The following colors are possible: red, brown, white, purple, 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: ['brown', 'red', 'white', 'yellow']. Hint: four colors are in the secret code but in the wrong positions.
Guess: ['red', 'red', 'red', 'brown']. Hint: two colors are in the correct positions.
Guess: ['red', 'white', 'yellow', 'brown']. Hint: one color is in the correct position and three colors are in the secret code but in the wrong position.
A B C D
white, purple, brown, brown white, yellow, red, brown yellow, brown, white, white yellow, purple, purple, yellow