World Sudoku Championship, Sofia 2015 – A retrospective

World Sudoku Championship (WSC) is held annually during September-November. Rakesh Rai was part of the Indian team in the 2015 World Sudoku Championship which took place in Sofia, Bulgaria. The write-up takes a detailed look at the experiences during the WSC, from a sudoku perspective. It also captures Team India’s performance in the WSC. World