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