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