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