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