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