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