Simplify the following text for a Grade 8 native English-speaking person.
Original: According to Moore he immediately fell in love with the game ; specifically , with the game of straight pool ( 14.1 continuous ) , at which he would chiefly compete during his career , though not to the exclusion of all other billiard disciplinesâ '' Moore would become national snooker champion , and would place second at the 1961 First Annual World 's One-Pocket Billiards Tournament in Johnston City , Illinois .
Simplified: He did , however , play other billiard games . In fact , in later years Moore become U.S. national snooker champion , and came in second at the 1961 First Annual World 's One-Pocket Billiards Tournament in Johnston City , Illinois .