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