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