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