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