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