The International Solving Contest (ISC) next year will take place on Sunday 23.01.2022. 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 than 2000. The third category is intended for youngsters born after 31.12.2008
Invitation to the 18th ISC
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