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