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