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