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