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