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