West Indies captain Chris Gayle's first test hundred against Australia gave his team a 296-run lead with a day remaining in the second test.
No team has made more than 239 in the fourth innings to win an Adelaide test and if Gayle doesn't declare overnight, Australia might need to
beat the all-time record of 315.
The West Indies finished at 8 for 284 with Gayle, who batted throughout the day, on 155 and Ravi Rampaul yet to score after Sulieman Benn skied a catch in the final over off Mitchell Johnson.
A draw remains the most likely result, especially with the possibility of some final-day showers, but Gayle at least significantly slashed the odds of West Indies going 2-0 down with one match to play, reports Cricinfo.
Following Australia's innings victory inside three days in Brisbane, Gayle and the team management kept their players in the dressing rooms for a long discussion, during which they resolved that the same result could not be allowed to happen again.
Dwayne Bravo, Brendan Nash, Benn and Kemar Roach have all stood up in Adelaide and on the fourth day it was the captain's turn to lead from the front. A late challenge from Johnson, who snared Bravo and Denesh Ramdin in one over on the way to 4 for 85, couldn't mask the fact that for most of the day Australia's bowling lacked bite. West Indies could have accelerated quicker in the final session to increase the pressure on the hosts but they remain in a strong position thanks to their captain.
It was an innings of uncharacteristic restraint from Gayle, who for most of the day resisted his urges to hit over the top, and instead scored most of his boundaries along the ground with well-timed straight drives or clips through the leg-side. Australia tried to tempt him early in the day with Marcus North and Nathan Hauritz bowling an outside off-stump line but he was happy to leave.
His century came from 179 deliveries and it prompted a display of clear emotion from the usually poker-faced Gayle, who beamed towards the dressing rooms and swung his bat in joy, having never before passed 71 against Australia.
