ISC 2026 will be remembered as a historic edition of the contest. With 952 participants, this year set a new all-time record in the history of ISC.
The event was held in 59 tournaments across 26 countries, bringing together 162 solvers in Category 1, 346 in Category 2, and 443 in Category 3. Such participation clearly demonstrates the continued growth of solving worldwide and the increasing engagement of new and young solvers.
It is inspiring to see our community expanding year by year, uniting experienced masters and beginners alike in the same global event.
Thank you to all Local Controllers for your dedication, precision and cooperation. Congratulations to the winners and prize-winners in all three categories for their excellent performances.
Problems CAT1 – CAT2 – CAT3 | Solutions CAT1 – CAT2 – CAT3 | Results CAT1 – CAT2 – CAT3
22.ISC PRESENTATION (page) | General ISC page
*Note regarding the result of Nika Riabenko
Following the post-event verification process, the result of Nika Riabenko was temporarily withheld and the case was referred to the Appeals Commission. After reviewing the available materials, the Appeals Commission decided that the result should be excluded from the official ranking and recorded as unofficial, and the final standings reflect this decision.















