The best of all the sports on Earth is chess.Some people can say it is not sport at all because it doesn\'t improve your physical strenght and your brain is not a muscle.I have some points to object. First, sport means constant training and improving yourself. To play chess well you must train really hard and long! Then, sport is a competition. If you can\'t compete in what you do, then it\'s not sport at all.And after all, to sit and play such a long time, you must be really strong! That\'s it!