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