The team’s victory is the chess-world equivalent of a scenario that was frequently tossed around by college basketball pundits several weeks ago: that the University of Kentucky Wildcats might be so good they could beat the Toronto Raptors or another of the worst N.B.A. teams. If anything, I.S. 318’s victory is even more impressive: they beat the best high school teams in the country.
“This is the greatest achievement we’ve ever had, and probably ever will have,” John Galvin, one of the coaches, said in a telephone interview from Minneapolis-St. Paul International Airport.
The victory might be a first for a middle school chess team.
Bill Hall, the executive director of the United States Chess Federation, which organized the championships, said he had never heard of a middle school winning the high school championships. “To my knowledge, it has never happened before,” he said.
Officially, I.S. 318 and Hunter College High School are co-champions. They tied for first place, but I.S. 318 was able to take home the first place trophy because its team had better tie-breaker scores.
To achieve the co-championship, I.S. 318 beat several other city chess teams this weekend, including Stuyvesant High School and Edward R. Murrow High School.
The I.S. 318 team has won at least two dozen national championships of various types in the last 12 years, Mr. Galvin said. Two team members — Justus Williams and James Black, both 13 — are rated as masters. And the team is the subject of a new documentary, “Brooklyn Castle,” which had its debut last month at South by Southwest in Austin, Texas, where it won the audience award.