Ipswich, featuring Socceroos Cam Burgess and Massimo Luongo, were pegged back three times at Hull City to sit third in the Championship after a weekend in which Harry Souttar's Leicester City guaranteed themselves one of the two automatic promotion places.
The Tractor Boys started the day a point behind Leeds having played two games fewer.
George Hirst fired the visitors in front in the 19th minute to give them a perfect start, but Hull capitalised on some slack defending to draw level through Ozan Tufan.
Chelsea loanee Omari Hutchinson curled in from outside the box to restore the visitors' lead in first-half stoppage time, before Liam Delap equalised again for the hosts.
Ipswich hit the front for a third time as Hutchinson was given space outside the box and bent the ball into the bottom corner - but Noah Ohio struck late on to clinch the draw and keep Hull's own play-off hopes alive.
Huddersfield are all but relegated after they drew 1-1 with fellow strugglers Birmingham at the John Smith's Stadium.
Both sides were in the relegation zone before the match and things were made worse for Huddersfield on the stroke of halftime as Keshi Anderson's cross was swept home by Koji Miyoshi at the back post.
Rhys Healey's equaliser is unlikely to be enough to prevent the Terriers heading back down to Sky Bet League One, with their goal difference inferior by 15 to 21st-placed Plymouth.
Birmingham are one point adrift of the Pilgrims and safety.
Sheffield Wednesday took a huge step towards safety with a 3-0 victory over West Brom.
Wednesday had taken only three points from 11 games when Danny Rohl took charge at Hillsborough but a stunning turnaround means they need just a point to ensure their second-tier status following promotion last season.
Plymouth were beaten 1-0 by Millwall at The Den, a fourth successive win for Neil Harris' men, while Stoke are safe from relegation after Tyrese Campbell's first-half finish earned a 1-0 victory over Southampton, who have to settle for a play-off place.
Blackburn are still not safe as they were held to a 0-0 draw despite having 30 shots against 10-man Coventry.
Norwich drew 2-2 with Swansea and need just a point on the final day to secure a play-off place.
Socceroo Sammy Silvera came off the bench as Middlesbrough ended their three-match winless run in style with a 4-1 victory over Cardiff.
Rotherham's lost 2-0 at Bristol City, while Watford beat Sunderland 1-0 for a first win in seven.
- with PA
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