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