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