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