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