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