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