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