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