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