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