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