Complex sentence: In 1990, Felt became the first Scrabble player to win both the US national Scrabble championship and the UK Scrabble championship in the same year, an amazing feat that required him to memorize two different dictionaries.
Split into simpler sentences: In 1990, Felt became the first Scrabble player to win both the US national Scrabble championship and the UK Scrabble championship in the same year. An amazing feat that required him to memorize two different dictionaries.