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