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