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