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