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