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