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