U.S. federal trademark · Serial No. 50114555
Keypads for use with (downloadable software/media) — app, e-book, or digital edition is planned.
Educational kits sold as a unit in the field of Books consisting primarily of printed (paper goods, printed matter) — covers the physical children's books themselves. This is the "The ABCs of Chess" is the immediate product. and also including DVDs
Provision of information in the field of recreational activities, namely, (education and entertainment services) — covers publishing/entertainment services more broadly (e.g., "publication of books," "entertainment services in the nature of an ongoing series of books"). The plan is a franchise/series under the Chessland name, not just one title.
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.