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