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