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