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