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