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