Your goal is to find the secret four-color code. The following colors are possible: white, yellow, blue, brown, purple, green.
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', 'purple', 'yellow', 'blue']. Hint: two colors are in the correct positions.
Guess: ['white', 'yellow', 'yellow', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'blue', 'white', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['brown', 'white', 'brown', 'blue']. 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
brown, purple, green, white white, yellow, blue, brown yellow, purple, blue, blue blue, yellow, green, white