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