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