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