The Czech Republic claimed the remaining Fed Cup semi-final berth after overcoming Spain 3-2 in their rain-delayed World Cup first round tie in Seville on Monday.
Czech's Czech Barbora Zahlavova Strycova serves to Spain's Carla Suarez Navarro during their 2014 International Tennis Federation Fed Cup World Group first-round tie at the Blas Infante tennis centre in Sevilla on February 8, 2014
Barbora Zahlavova and Andrea Hlavackova clinched the decisive fifth rubber with a 7/6 (9/7), 6-3 doubles win over Carla Suarez Navarro and Silvia Soler-Espinosa.
That sent the Czechs through to a last four clash with the defending champions Italy, 3-1 winners over the United States on Sunday.
The other semi-final sees Germany, who defeated Slovakia 3-1, up against Australia, who routed Russia 4-0, also on Sunday.
Rain in Spain meant only the opening rubber - where Spain's Suarez Navarro had seen off Zahlavova - had been completed, leaving all to play for on Monday.
Klara Zakopalova got Monday's action off to a good start for the visitors with a tense 3-6, 6-2, 1-6 defeat of Maria-Teresa Torro-Flor to even up the tie.
The hosts, who haven't won the FedCup since 1998, took the third rubber - Navarro getting the better of Zakopalova in three sets - before Lucie Saforova defeated Soler-Esponosa 4-6, 6-1, 6-3 to leave the tie going down to the wire to the concludingsealoubles.
The Czechs won the last of their seven FedCup titles in 2012.
The semi-finals of the women's competition are scheduled for the weekend of April 19-20.