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