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