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