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