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