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