Last Saturday, Linköping defeated league leader Frölunda in overtime.
Tonight, they received table four Luleå at home and won this time again in overtime.
In the first period, Konstantin Komarek gave Luleå the lead after an assist by Juhani Tyrväinen.
But with 37 seconds left of others, Linköping equalized when the American Broc Little put the puck in the far cross in powerplay.
Despite the majority of numerical disadvantages, Linköping held off during both the second and third periods.
In overtime, Linköping's Christoffer Ehn scored the decisive goal.
The match ended 2-1.
The text is updated.