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