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