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