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