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