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