in the 1969 World Championship. Spassky won by 12½-10½. During Spassky's three-year reign as World Champion, he won several more tournaments. He placed first at San Juan 1969 with 11½/15. He won a very strong tournament at Leiden 1970 with 7/12. Spassky shared 1st-2nd at Amsterdam 1970 with Lev Polugaevsky on 11½/15.