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