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