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