Play Chessmaster, The on gb Online

Software Toolworks released Chessmaster for the Game Boy in 1991, a time when handheld strategy games were still a novelty. It was one of the few serious chess options available on the platform, offering a portable alternative to physical boards or computer versions.

You control the pieces in standard chess matches against either a human opponent or the built in AI. The main objective is to checkmate the opponent's king, using all the classic moves like castling, en passant captures, and promotions. The game includes a teaching mode with lessons on openings and tactics, and the adjustable difficulty lets you find a suitable challenge, though the higher levels can be brutally efficient. Playing it feels like having a stern but fair chess tutor in your pocket, always ready for one more game.