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