Sherlock Holmes is a fictional detective created by Sir Arthur Conan Doyle, known for his astute logical reasoning, forensic science skills, and his ability to observe the smallest details. Holmes is a character of considerable intellect, who possesses a remarkable ability to deduce information from observation. He is depicted as a bachelor who lives at 221B Baker Street in London with his friend and chronicler Dr. John Watson. Holmes frequently clashes with criminal mastermind Professor James Moriarty. He often employs disguises to move about undetected and exhibits a strong sense of justice. His preference is for pipe smoking and the violin, and he lacks patience for anything that doesn't stimulate his intellect.