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