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