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