HC Litvinov U20 beat HC Kometa Brno U20 4-2 in regulation, and the margin came entirely from the third period. Through 40 minutes this was a coin-flip game; over the final 20 it was a one-sided one.
The teams traded goals in the first to sit 1-1 after 20 minutes, then traded again in the second to go to the room level at 2-2. The turning point was simply the third: Litvinov scored twice and shut out Brno over the closing frame to take it 4-2.
The number that matters is 2-0 in the third — the only period either side won outright. Litvinov's goal support with individual scorers is not available here, but the period splits tell the story: two even frames, one decisive one.