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