The Czechs made it three wins from three by beating Japan 4-0 in the day’s later game, after Germany had seen off Denmark 3-1.

Germany’s victory leaves them well-positioned in second in Group B on six points.

The first 20 minutes set a new record for the fewest shots in a period at the Women’s World Championship, with Germany registering six and Denmark none.

Julia Zorn found the net with one of those to give the Germans the lead, which they doubled in the second period through Jule Schiefer.

It was 3-0 when Theresa Wagner was assisted by Anna Reich, but captain Josephine Jakobsen was able to get Denmark on the scoresheet, although her side remain bottom of group B.

That was the first goal conceded by Germany at the tournament, but coach Thomas Schadler was delighted with how his side performed.

"We played really well in the first period," Schadler commented.

"We stuck to our game plan.

"It was the best period in the tournament for us so far.

"But in the second period the Danes started to forecheck us much harder and they gave us problems with our breakout under pressure.

"They never give up, but we played well at the end of the third, and we're happy with the win."

Only Czech Republic boast a better record than Germany in the group, following up wins against Denmark and debutants Hungary with a 4-0 triumph over third placed Japan, despite recording 20 shots to their opponents’ 24.

Dominika Laskova, assisted by Noemi Neubauerová, put her side in front in the first period, before Neubauerová and captain Alena Mills made it 3-0 in the second period, with Mills the tournament’s leading scorer with four goals and five points.

Kateřina Mrázová completed the scoring in the third period.

Coach Tomas Pacina was pleased with how the Czechs came through the challenge.

"We felt really good after the first period," he said.

"Yes, the Japanese got some shots.

"But we were playing our game, and we were matching their work ethic, their skating.

"We were playing according to our principles in our playbook.

"We knew this was going to be a very difficult game.

"We knew we'd be challenged in all areas.

"There were a few tactical things that we addressed.

"But philosophically and in terms of mental preparation, we were ready today."

The top three teams progress to the quarter-finals from group B, with no relegation to Division I for the bottom two this year.

The action in Calgary is due to continue tomorrow, with defending champions United States looking for a third straight win against the Russian Olympic Committee and hosts Canada facing Switzerland as they look to stay top of group A, while Japan will hope to boost their quarter-finals prospects when they play Hungary in group B.