Complex sentence: It was Savielly Tartakower, however, who played it regularly in the 1920s and even to the end of his life, featuring in his victory over Donner at the Staunton Centenary in 1951.
Split into simpler sentences: It was Savielly Tartakower though, who played it regularly in the 1920s and even at the end of his life. It featured in his victory over Donner at the Staunton Centenary in 1951.