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