Your goal is to find the secret four-color code. The following colors are possible: yellow, red, pink, blue, brown, 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: ['pink', 'green', 'brown', 'yellow']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
Guess: ['yellow', 'yellow', 'brown', 'red']. Hint: one color is in the correct position and one color is in the secret code but in the wrong position.
Guess: ['yellow', 'yellow', 'yellow', 'blue']. Hint: none of the guessed colors are present in the secret code.
Guess: ['red', 'green', 'brown', 'pink']. 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
red, pink, brown, brown pink, red, brown, green green, green, brown, pink green, pink, blue, green