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