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