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