(CNN) -- Barcelona took a big step towards setting up a semifinal showdown with Spanish rivals Real Madrid by beating Shakhtar Donetsk 5-1 in the Champions League on Wednesday.

The Ukrainian champions are unbeaten at home in more than two years ahead of next week's return leg, but the 2009 titleholders took control of the quarterfinal with a typically dominant display in the Catalan capital to match Real's four-goal demolition of Tottenham on Tuesday.

Andres Iniesta, playing further forward than his usual midfield role, settled any signs of nerves for the home fans inside two minutes when he pounced to score after Lionel Messi's intended pass to strike partner David Villa was deflected into the 2010 World Cup match-winner's path.

The Spain star then set up Daniel Alves for the second goal in the 34th minute with a clever pass over the defense that the Brazilian fullback pushed wide of goalkeeper Andriy Pyatov and flicked into the net with the outside of his right foot.

unfortunately the barcelona win 5-1 against shakhtar and know is sure that it pass to the semi finals against the real madrid that of course the real will win the goals that the barcelona score was of dani alves andres iniesta(2, keita.