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