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