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