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