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