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