Pakistan's spin quartet capitalized on an unexpected power failure to beat Bangladesh by 58 runs in the third One-Day International to complete a 3-0 series victory Tuesday. After restricting Pakistan to a bellow-par 177 runs, Bangladesh appeared to be coasting toward victory as it reached 61-1 when suddenly the floodlights went out at the Zahur Ahmed Chowdhury Stadium. That unexpected 15-minute break extinguished Bangladesh's hopes of avoiding a series whitewash as upon resumption it lost its last nine wickets for just 50 runs and was all out for 119. Off-spinner Mohammad Hafeez led Pakistan spin attack with 3-27, while former captain Shoaib Malik, playing his 200th One-Day International, cleaned up the tail with three wickets for only six runs. Hafeez bowled opener Tamim Iqbal with the first ball of the innings but Shahriar Nafees and Mahmudullah frustrated the visitors with their patient knocks to put on 69 runs for the second wicket. Just when it seemed that Bangladesh may finally earn a long-overdue victory against Pakistan, Misbah-ul-Haq's men fought back by grabbing five wickets for just 14 runs. Off-spinner Saeed Ajmal trapped Nafees (25) lbw, Mushfiqur Rahim was sent back without scoring by left-arm spinner Abdur Rehman while Hafeez removed Mahmudullah (35) and Shakib Al Hasan (nine). Nasir Hossain's innings lasted just eight balls as he became Rehman's second victim of the day and his exit left Bangladesh reeling on 83 for six. Alok Kapali and Farhad Reza revived their hopes with a 34-run stand before a dubious umpiring decision ended it all for the home side. A confident-looking Reza was given out lbw off Ajmal for 21 but television replays suggested the ball took an inside edge before hitting his pad. Ajmal finished with two wickets for six runs as Bangladesh lost its last four wickets for two runs. Earlier, a 94-run fourth wicket stand between Misbah-ul Haq and Umar Akmal provided the backbone in Pakistan innings as Bangladesh spinners also had some success on the slow Chittagong pitch. Akmal made his second half-century of the series before he was stumped by Mushfiqur Rahim off Elias Sunny for 57 off 84 balls. Misbah chipped in with 47 before falling to left-arm spinner Abdur Razzak, who finished with 3-21. Off-spinner Mahmudullah claimed career best 3-4 bowling only seven deliveries to wrap up the Pakistan innings.