you burn up to 6000 calories a day during tournaments. just playing chess! daylong chess. elevated blood pressure and muscle contractions. according to researcher into theirs in the 19. it can raise iq scores as well. lots of benefits. i can see why has become so popular. i played speed chess against a nine year old had lost in about 20 seconds. it was one of the most embarrassing moments of my life. he was very good, trained by his father. he had chess books. i still strode in there like i would defeat him easily. you took on usain bolt in running, didn t you? ok, you and me. ready, steady, go everyone is getting used to going