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