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