Karachi:Younis Khan on Thursday smashed an unbeaten 93 to give Pakistan hope of chasing down a huge fourth innings target in the first Test against South Africa.
Set a target of 424 to win in four sessions, Pakistan moved to 146-3 by stumps on Day 4, thanks to Khan's aggressive batting, which included 14 boundaries.
The home team requires a further 278 runs in a minimum 90 overs to be bowled on Friday at National Stadium - a venue where it has lost just one out of 39 Test matches.
No team in Test history has successfully chased such a large fourth-inning target.
West Indies holds the record of the highest ever chase when it defeated Australia at Antigua in 2003 by scoring 418 runs.
South Africa declared its second innings at 264-7 at tea, shortly after Jacques Kallis completed his second century of the match and then made early inroads into Pakistan.
Paceman Dale Steyn (2-44) removed both openers cheaply before Faisal Iqbal (44) and Khan joined in a 114-run partnership off 145 balls.
Left-arm spinner Paul Harris got the much needed breakthrough 21 balls before stumps when Faisal gloved an easy catch and departed after hitting eight boundaries.
Younis, however, raced on to complete his run-a-ball half-century and attacking the South African bowlers, setting up an intriguing battle on the final day.