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