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