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