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