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