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