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