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