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