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