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