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