Invitation to the 23rd ISC
🧩 Solving
📍Multiple
🗓️24 January 2027
Problems CAT1 – CAT2 – CAT3 | Solutions CAT1 – CAT2 – CAT3 | Results CAT1 – CAT2 – CAT322.ISC PRESENTATION (page) | General ISC page *Note regarding the result of Nika RiabenkoFollowing 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
The International Solving Contest next year will take place on Sunday 25.01.2026. The event is happening simultaneously in all participating countries.There will be three categories: one for experienced solvers. The second category is intended for weaker, inexperienced solvers. This second category is not open for solvers with a rating (or half-rating or non-active-rating) of more
This is a formal document issued by the WFCC Ethics and Disciplinary Committee regarding disciplinary action on 4 solvers from Azerbaijan.
Following protests submitted by six countries and the evidence from reports (Points 9.1 to 9.5 in WCCC 2025 Agenda), WFCC Assembly voted to exclude results of the four Category 1 solvers from Sumgait (Azerbaijan). Consequently, the rating lists for April and July 2025 have been slightly changed. Here are the final results of ISC 2025
“We had 46 tournaments in 28 countries and 745 solvers (15 unofficial solvers in cat-3) – 184 solvers in cat-1, 254 solvers in cat-2 and 292 solvers in cat-3. This year’s participation reflects the growing interest and enthusiasm for the sport, and it is heartening to see such a diverse and passionate community of solvers
The International Solving Contest next year will take place on Sunday 19.01.2025. The event is happening simultaneously in all participating countries. There will be three categories: one for experienced solvers. The second category is intended for weaker, inexperienced solvers. This second category is not open for solvers with a rating (or half-rating or non-active-rating) of
20th International Solving Contest (ISC) 21th January 2024 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 cooperation and congratulations to the winners.
The International Solving Contest next year will take place on Sunday 21.01.2024. The event is happening simultaneously in all participating countries.There will be three categories: one for experienced solvers. The second category is intended for weaker, inexperienced solvers. This second category is not open for solvers with a rating (or half-rating or non-active-rating) of more
31 member countries were present, 4 of them via Zoom connection. Armenia was welcomed as the 44th member country of the Federation. Upcoming events 2024: 20th International Solving Contest (ISC) on 21 January 2024, central organizers Luc Palmans and Arvydas Mockus. 17th European Chess Solving Championship (ECSC) in Hagen, Germany 19-21 April 2024. 66th World Congress of Chess Composition (WCCC) and 47th World Chess