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