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