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