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