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