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