The Warriors took a 3-1 lead in this best-of-seven series Sunday. [...] they return to Oracle Arena, where they're 41-2 this season — though Curry played in all but one of those games (he missed an overtime win over Atlanta on March 1). Nine teams in NBA history have erased a 3-1 deficit in a best-of-seven series, including the Rockets in last year's Western Conference semifinals against the Clippers. Iguodala in 24 minutes: 22 points (on 9-for-11 shooting, including 3-for-4 from beyond the arc), five rebounds, four assists. Livingston in 23 minutes: nine points, a team-high nine assists, five rebounds. The Warriors set an NBA playoff record by making 21 three-pointers Sunday (in 40 attempts). Houston guard Patrick Beverley left in the second quarter with a strained right leg and did not return.