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