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