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