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