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