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