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