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