INTERNATIONAL Master (IM) Daniel Quizon continued his march towards claiming a World Chess Olympiad spot after scoring 1.5 points in the fourth and fifth round and seizing the solo lead in the Philippine National Chess Championships at the Marikina Community Convention Center.

Quizon, 19, actually took the lead after a shock 33-move victory over Grandmaster (GM) Darwin Laylo in the fourth round early in the day and then drew with FIDE Master Mark Jay Bacojo hours later that kept the former national champion well perched at the helm with 4.5 points.