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