Former champion Pankaj Advani and young cuiest Sourav Kothari have entered the semifinals in the Point Format of IBSF WorldBilliards Championship. The event is being played in Carlow, Ireland.While Advani overcame Peter Gilchrist of Singapore 4-3, Kothariprevailed over teammate Dhruv Sitwla 4-2 in the quarterfinals played last night at The Ivory Rooms.However, it was curtains for eight-time world champion Geet Sethi and 1998 Asian Games Billiards Single gold medalist Ashok Shandilya. Both of them lost their respective quarterfinals to bow out of the championship. In the semifinals, Kothari will take on Mike Russell of England while Advani will lock horns against Praput C of Thailand.