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