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