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