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