20th International Solving Contest (ISC)21th January 2024Results & Statistics We had 41 tournaments in 26 countries and 669 solvers from 46 countries (24 unofficial solvers in cat-3) – 171 solvers in cat-1, 236 solvers in cat-2 and 262 solvers in cat-3. Thanks to all local controllers for their excellent work and good … Continue reading International Solving Contest 2024 Continue reading