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: ['brown', 'red', 'blue', 'black']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['blue', 'blue', 'yellow', 'red']. Hint: one color is in the secret code but in the wrong position.
Guess: ['red', 'black', 'white', 'brown']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'blue', 'red', 'brown']. 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, red, blue, blue yellow, blue, black, white red, white, black, brown brown, brown, white, blue