The fourth part of this series focuses on being able to recognize and apply chess tactics. A game in which both sides follow the golden opening rules may be safe, but it will also be boring!

At the end of this mini-series on how to play chess, there are a few tips for improving your tactics.

Dolphins sleep with one eye open? Crows are as intelligent as 8-year-old kids? Leopards freely roam the streets of Mumbai? In this video, Eylin tells us ten intriguing facts from the animal world.

Want to know more about medicinal herbs? Here, Eylin introduces us to ten popular domestic plants that can be used to soothe, heal, and calm.

New technology championed by auto insurance companies in Germany has made it possible for cars to automatically notify emergency services in the event of an accident. Find out how it works in this video.
Copyright: Deutsche Presse Agentur [The German Press Agency]

Emotional, playful and a great singing talent: German-Turkish pop-singer Elif is releasing her debut album Unter meiner Haut [Under My Skin] and talks about experiences in life that have touched her deeply. Viel Spaß!

Gabriela and Mira from Karlsruhe talk about SINGinKA, the local choir project they founded. Their group doesn't have the same structure as most choirs – and is therefore much more open to all types of singing enthusiasts!

When Lilly Stoephasius rips through Berlin's skate halls, others stare in awe: The 12 year old is the best female skater in Germany.

Professional slackliner Lukas Irmler has performed incredible feats all over the world. Last summer, the extreme athlete stretched his synthetic fiber rope in the South Tyrolean Dolomites, encountering a greater challenge than expected.

Berlin-based skateboarder Lilly Stoephasius is only 12 years old, but she’s already won a European skating championship in the “Park” discipline – and hopes to attend the Olympic games in Tokyo. Here, she and her dad discuss her everyday skating life and her longer-term goals.

André Wiersig is not your average swimmer who just goes to his local swimming pool. This is a man who likes to push the boundaries of what is humanly possible, swimming out in the open seas without any protection from the cold.

In this part, we find out how it all began and why extreme swimming is not the way to go if you are mainly interested in exercising to look good.

How does André Wiersig prepare for the cold? How did he get into the game in the first place? Watch this clip to find out.

André Wiersig has had some brushes with death in his time. He tells us about his experiences and the peaceful relationship he has with the other species that swim with him in the ocean.

Strength training is also part of André Wiersig's preparation for his aquatic challenges. That can sometimes be quite painful... This extreme swimmer tells us how he manages to keep the pain at bay.