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