ALPINE SG Pipers stunned two-time defending champions Triveni Continental Kings to be crowned champions of the third edition of the Global Chess League(GCL) here on Tuesday. The Pipers, who had sealed the final berth after edging Ganges Grand masters by just one game point, were at their dominant best in the final as they won the first rapid match 4-2 with black pieces and then scored a 4.5-1.5 win with white. PBGA Laskan Knights finished third after beating Ganges Grandmaster Sinatie-break.