BUDAPEST: Haik Martirosyan defeated Magnus Carlsen to take the outright lead in Group C on the third day of the Fast Classic group stage at the Total Chess World Championship Tour Pilot in Budapest. Andrew Hong also caused an upset by handing Group A leader Alireza Firouzja his first defeat of the group stage. Games 5 and 6 produced 10 decisive results from 24 games. Each player again faced the same opponent twice with colors reversed, with three points awarded for a win and one for a draw. Afte