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