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