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