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