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