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