Meet Our Instructors

Silvio Rosato has been an NSCF instructor since 1999 and teaches both enrichment and curricular classes for the NSCF. A master of classroom management and teaching strategies, Silvio effectively uses many sources and varies his approach, adjusting his tone, activity and interaction to best meet the needs of the children.

Silvio's private students have earned first place in their respective scholastic sections, including the 2014 Westchester County Grade Championship.

As a NSCF tournament director, Silvio directs tournaments held in Westchester and Southern Connecticut. He is also a TD for the New York State Championships. Silvio excels at directing the young players in the K-1 section, where his calm manner while maintaining high standards makes events a pleasure for our youngest players and for their parents.

Instructor Jon Rigal

Jon Rigai is a strong (Class A) chess player with over 23 years of playing experience and 7 years of coaching experience. He was a former student of the late Grandmaster William J. Lombardy (1937–2017), Bobby Fischer's former teacher.

According to Jon, the most important lessons that he took from his time with Grandmaster Lombardy was to: (1) make sure that he was always well prepared for any upcoming competition that he would participate in; and (2) to use the Eidetic imagery technique regarding the study of positions, patterns and games. This technique is used by all top level players when they study master level games. Jon constantly emphasizes these concepts to his students on a daily basis to instill good habits within them.

He currently coaches at Bronxville Elementary; in 2016, Jon led the team to a sixth place finish (out of over 300 teams) in the K-6 Elementary Nationals .

Julio Maldonado was born in Bridgeport, Connecticut but learned to play chess around the age of 9 in Puerto Rico where he became the territory's high school champion in 1977-78. While serving in the US Army in Germany, Julio finished in the top 10 in the 1986 USAREUR Army chess tournament. Julio has been teaching chess since 2005 in Westchester and enjoys teaching students between kindergarten and middle school grades.

Instructor Jason CianoCoach Warren Williams, aka Dr. Gambit, aims to have his students develop their minds and social skills through chess education, discipline and mentorship. Named Dr. Gambit by the late Tharin Chadwick, who was known as Dr. Chess, Coach Warren brings 42 years of chess playing and 17 years of enthusiastic teaching experience to his NSCF classrooms. The kids love when he brings his large chess set and fuzzy board!

Warren is a Retired NYS Peace Officer with 25 years of service, 15 years of those as Community Affairs Officer. During his tenure, he taught chess to youth and seniors, organized tournaments within the Bronx community and received many awards and citations, including a 2012 NYS Proclamation Award for Youth Leadership from Bronx Borough President Ruben Diaz.

NSCF Instructor Nathan Goldberg loves teaching, chess and children. He began teaching chess to children in 1999 for Chess-in-the-Schools, and became an elementary math and chess teacher for the NYC Department of Education in 2005. He has taught chess in classrooms, afterschool programs, camps and as a private tutor. Now retired from the NYC Department of Education, Nathan joined NSCF to focus on teaching his first love, chess.

Nathan has created a wide variety of chess worksheets, puzzles, activities and poetry to help him teach, always challenging his kids to think in new ways. He sees chess as the perfect metaphor for life, and engages his students with the wisdom and habits of chess playing along with the rules, tactics and strategies. Nathan shares his enthusiasm and passion for learning at every opportunity, and has the ability to motivate children to achieve great things.

NSCF Instructor Joe Maher started playing chess at 6 years old but was in college before he began playing tournaments. Since then he has directed countless regular and scholastic tournaments. Joe is a former President of The Bob Peretz Bronx Yonkers Chess Club and a retired police officer, Joe has been teaching chess to all ages for 18 years. Joe is also an avid collector of chess sets and other memorabilia.