As of now, there is no chess AI that cannot be defeated. While some chess AIs are extremely strong and can defeat even the best human players, they are not unbeatable. The development of AI in chess is ongoing, and new programs are constantly being created and improved upon, but there is always the possibility of a human player finding a way to defeat them. **

Hashirama Senju was defeated by his rival and former friend, Madara Uchiha, during the battle at the Valley of the End. This battle marked the end of the era of warring states and the beginning of the village system in the Naruto series. Despite their long history and deep bond, Madara ultimately emerged victorious in their final battle. **

The Ottomans were defeated by the Allied Powers during World War I. The Ottoman Empire was on the losing side of the war and was eventually dismantled through various treaties and agreements, such as the Treaty of Sèvres. This defeat marked the end of the Ottoman Empire and led to the establishment of modern-day Turkey. **

Cancer can be defeated through a combination of prevention, early detection, and effective treatment. Prevention strategies include maintaining a healthy lifestyle, avoiding tobacco and excessive alcohol consumption, and protecting oneself from harmful environmental factors. Early detection through regular screenings can help catch cancer at an early stage when it is more treatable. Advances in medical research have led to the development of targeted therapies, immunotherapies, and personalized medicine, which have significantly improved outcomes for many cancer patients. Additionally, ongoing research and clinical trials are essential in finding new treatments and ultimately finding a cure for cancer. **

It is difficult to definitively say whether you have defeated hair loss without more information about your specific situation. While you may have found success in managing or reducing hair loss through various treatments or lifestyle changes, it is important to continue monitoring your hair health and consulting with a healthcare professional to ensure long-term success. Hair loss can be a complex issue with various underlying causes, so it is important to stay proactive in maintaining healthy hair. **

Obito was defeated by Naruto Uzumaki and Sasuke Uchiha during the Fourth Great Ninja War. After a long and intense battle, Naruto and Sasuke were able to work together and use their combined strength and abilities to finally defeat Obito and bring an end to his plans for world domination. **

Mold cannot be defeated with ice alone. While cold temperatures can slow down the growth of mold, it will not completely eliminate it. Mold requires moisture to grow, so the key to defeating mold is to address the source of the moisture and ensure proper ventilation and humidity control in the affected area. Additionally, it is important to physically remove the mold using appropriate cleaning methods and products. **

Climate change can be defeated through a combination of individual actions and collective efforts. Individuals can make a difference by reducing their carbon footprint through actions such as using public transportation, reducing energy consumption, and supporting sustainable practices. Governments and businesses also play a crucial role in implementing policies and practices that promote renewable energy sources, protect natural habitats, and reduce greenhouse gas emissions. Collaboration between individuals, communities, governments, and organizations is essential to combat climate change effectively. **