Christian Core has put up, what might be, the hardest problem in Italy. The problem, which, as far as we know, hasn´t got a name yet, is thought to be 8b bloc, and is an eliminate version of an 8a problem.
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Christian Core has put up, what might be, the hardest problem in Italy. The problem, which, as far as we know, hasn´t got a name yet, is thought to be 8b bloc, and is an eliminate version of an 8a problem.