CREATE TABLE table_39003 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" TEXT, "Position" TEXT)

What is the highest round with a guard position and an overall greater than 71?
SELECT MAX("Round") FROM table_39003 WHERE "Position" = 'guard' AND "Overall" > '71'
SELECT MAX("Round") FROM "table_39003" WHERE "Overall" > '71' AND "Position" = 'guard'