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