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