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