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