Tom Ince’s confidently dispatched penalty was enough to push Blackpool up to fifth in the table after Saturday’s round of fixtures.
Watford’s failure to pick up three points was key; Connor Sammon’s late winner for Derby meant the Hornets would remain below the Seasiders after a 3-2 defeat.
Elsewhere in the Championship, Burnley shot to the summit as their fine form continued with a 1-0 win at Ipswich, Scott Arfield heading in the winner.
That victory punished QPR, who could only draw 2-2 at Millwall, after conceding a last minute Jermaine Easter equaliser.
Along with Pool, Leicester were the only other victorious side in the play-offs before the weekend.
Anthony Gerrard’s own goal sank Huddersfield, who lost 2-1 at the King Power Stadium, whilst Bournemouth left it late to claim a 1-1 draw at Nottingham Forest.
Also capitalising on Watford’s slip up was Reading, who crushed Doncaster 4-1.
Blackpool’s opponents next Saturday Blackburn, were on the wrong side of a 1-0 score line against Charlton.
Elsewhere, Yeovil and Brighton drew 0-0, whilst Bolton and Sheffield Wednesday also couldn’t be separated, they finished all square at 1-1.
At Oakwell Barnsley survived a late Middlesbrough fight back to hang on and win 3-2.
On Sunday Leeds breezed past Birmingham, with Matt Smith claiming two in a crushing 4-0 victory at Elland Road, to conclude the weekend’s action.