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