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