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