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