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