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