More than 200 mathematics whiz-kids from Hong Kong, Macau and the mainland descended on Wu Kwai Sha Youth Village for the six-day National Mathematical Winter Camp. The camp, in its 16th year, was set up by renowned Chinese mathematician Professor Hua Loo-keng to raise students' interest in the subject on a national level. The camp also aims to identify the country's elite mathematicians for further training at the country's best institutes. The camp was co-organised by Chung Chi College of the Chinese University of Hong Kong (CUHK), the Education Department and the Chinese Mathematics Society. During the six-day camp, a series of written examinations was conducted through which candidates were selected for further training in preparation for the 41st International Mathematical Olympiad (IMO) to be held in Washington DC in July. At the camp's closing ceremony, Chu Zhinong, director of the Education, Science and Technology Department of the Liaison Office of the Central Peoples' Government in the HKSAR, said: 'It is the first time the winter camp has been hosted by the SAR. 'This is a national event and its success bears witness to the unbreakable ties between Hong Kong and the mainland.' Also present were the assistant director of the Education Department, Poon Chun-shing; IMO Hong Kong committee chairman Professor Shum Kar- ping; CUHK Science Department dean Professor Lau Oi-wah; and senior fellow of the Chinese Academy of Science in Beijing, Professor Wang Yuan. Professor Shum said: 'This year's camp is the largest ever with more than 200 high school students from Hong Kong, Macau and 31 mainland cities. Over the 14 years mainland students have participated in the Olympiad, they have won the team title eight times and were first runner-up three times. Thirty local students were chosen for further training at CUHK and six will represent Hong Kong in the Olympiad. Students also received certificates for their satisfactory completion of the winter camp. Representatives from Liaoning province scored the highest marks in the written examination, while Shanghai came second and Beijing third.