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