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