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