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