Dubai: Pakistan declared their first innings at 579-3 after opener Azhar Ali knocked his maiden triple hundred on day two of the first day-night Test against West Indies in Dubai on Friday.
Ali remained unbeaten on a 645-minute vigil of 302 -- fourth to score a triple hundred in Tests from his country - after Pakistan resumed the day on 279-1 at Dubai stadium.
Misbah-ul-Haq remained 29 not out while Babar Azam made 69 and Asad Shafiq scored 67.
For West Indies leg-spinner Devendra Bishoo finished with 125.
This is only the second ever day-night match in Test cricket´s 140-year-old history after Australia and New Zealand featured in the first in Adelaide last year.
Resuming at 279-1 Pakistan - who reached 391 at tea - lost one wicket in the two-hour session when Asad Shafiq gave a return catch to leg-spinner Devendra Bishoo after scoring an attractive 67 for his ninth half-century in Tests.
Ali continued from where he left after resuming at 146, reaching his 150 with a single and then hit a six and a boundary off Chase to Pakistan past 350.
Shafiq also reached his 15th half-century with a well-timed boundary off Bishoo before losing out on a big score as he mistimed a straight drive. In all, he hit nine boundaries.
Azam, inducted in the side after his three hundreds in as many matches in the 3-0 rout of the West Indies in the preceding one-day series, also looked solid, hitting two boundaries.
Australia and New Zealand played the first day-night Test in Adelaide last year, the first-ever in Test cricket´s 140-year-old history.