Modo-educated Jesper Olofsson needed 39 minutes in his national team debut to score his first goal in the blue and yellow jersey.
In Swedish powerplay, defender Henrik Tömmernes kept the puck elegant, Olofsson found who shot directly - in the net roof behind the Czech goalkeeper Petr Kvaca.
- It was just to clap for it, says Olofsson to SVT about the goal.
The goal came in a situation where the Czech Republic felt closer 2-1 than 3-0 to Sweden, in a period where the Czechs were slightly better than Tre Kronor.
And from just the speed also came 4-0.
35 seconds later, Röglebacken Anton Bengtsson fired a wrist shot that Kvaca did not manage to pick and the over 7,000 spectators in Saab Arena in Linköping had to rejoice a fourth time.
The third period was more rejected.
Swedish KHL goalkeeper Lars Johansson looked to keep a clean sheet in the national team comeback - but 2.15 from the end of the match came the Czech reduction.
A little snotty for Johansson, the puck bounced in the rim before it slipped out to the released forward Filip Chlapik who had an open goal.
- You can give and take a little, it might not be so smart to go out on it, but you have to offer it, says Lars Johansson to SVT.
In the next match, Tre Kronor will face Russia, in a match that SVT broadcasts on Saturday starting at 12.55 on SVT1.