The purpose of this letter is to update and supersede all previous US Chess Federation (US Chess) certifications
for the ChessNoteR Nexus 6 (N6) and Nexus 9 (N9) electronic notation devices (ENDs) issued by US Chess in
November 2017, July 2019, and October 2022. This review was requested by the owner of ChessNoteR, Mr. Troy,
because of a version update to the ChessNoteR software. This review was performed under the auspices of the US
Chess “Policy and Guidance for Certifications of Electronic Notation and Game Broadcasting Devices” (i.e.,
device certification policy) approved February 2, 2020
