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