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