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