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