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