Championship leaders Cardiff have handed Hull a chance to close the gap at the top after being held to a 0-0 draw by Mick McCarthy's Ipswich.
The second placed club play Sheffield Wednesday this evening.
Leicester are up to third after an impressive 4-0 victory at Bristol City.
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They climb above Crystal Palace, who lost 1-0 at Burnley, and Middlesbrough, who suffered a 2-1 home defeat at the hands of Watford.
Barnsley are off the bottom after a 2-0 win over Leeds.