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