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