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