Rudolf Heinrich Willmers was widely known as a brilliant player - the trill was his specialty - and composer... for the piano (source), but he also composed chess problems. "Musicians and Chess" reports the following anecdote:
While playing Schumann's 'Carnival' in a piano recital in Copenhagen, Willmers stopped suddenly, wrote on his cuff, and then continued. He explained afterwards that he had been struggling for a week to solve a difficult problem when the solution came to him in a flash. 'I had to jot it down to get it out of my head and let me concentrate entirely on my playing.'
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