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