Australia was all out for 334 on the stroke of tea on day three of the first test at Lord's Thursday, leaving Pakistan a world-record run chase of 440 to win the match.
The Australian tail added vital runs in the afternoon session, with No. 10 batsman Ben Hilfenhaus flourishing in the sun by registering a test-best score of 56 not out from 84 balls.
Pakistan's hopes of registering its first test win over Australia in 15 years receded by every run, especially considering the evidence of its first-innings performance of 148 in reply to Australia's 253. Australia is chasing a seventh straight test win.
Pakistan has never successfully chased more than the 315 it scored against Australia in 1994 in Karachi. The world-record chase is 418.
Pakistan removed both Simon Katich (83) and Marcus North (20), the unbeaten batsmen at lunch, without a run being added afterward the interval, but was unable to push on despite Umar Gul's 4-61.
Katich pushed tentatively and edged a Gul delivery just outside off-stump to wicketkeeper Kamran Akmal, ending the batsman's 174-minute stay.
Left-handed opener Katich, who resumed Thursday on 49, made his fourth consecutive innings of 50 or more and is averaging more than 90 this year.
North followed him to the pavilion the very next over when he played a loose stroke to a delivery from Mohammad Asif that was much wider.
After Steven Smith made 12 before perishing to fellow leg-spinner Danish Kaneria for the second time in the match, debutant Tim Paine contributed 47.
Hilfenhaus frustrated Shahid Afridi's team by adding 74 runs with Paine for the ninth wicket and 52 with Doug Bollinger, whose 21 was his test-best score too. Bollinger was the last man out, bowled by a huge Kaneria leg-break.
Hilfenhaus, who drove Asif over cover for six shortly before tea, was able to boast the half-century achievement at Lord's that his captain Ricky Ponting and India's Sachin Tendulkar _ the two highest scorers in test history - failed to do. He reached the milestone by running three off Kaneria.
The only wicket to fall in the morning session was that of nightwatchman Mitchell Johnson (30), who was bowled by Gul for his 100th test wicket.