Panchkula, Oct 8 (UNI) As many as 13,900 schoolchildren participated in a 45-day competition aimed at strengthening logical reasoning, mathematical understanding and problem-solving skills, with 96 students qualifying for the district-level Puzzle and Pattern Championship 2026 held here on Thursday. Organised under the Nipun Panchkula Mission, the competition covered school, cluster and block-level rounds before culminating in the district finale at Chitkara International School, Sector 28.