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