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