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