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