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