Play The Fidelity Ultimate Chess Challenge Online

Summary

The Fidelity Ultimate Chess Challenge brings the Chessmaster 2100 engine to the Lynx, handling all the classic rules you’d expect—en passant, castling, check, checkmate and a variety of draw conditions. You can set optional move‑time limits and even dial in how long the CPU thinks before it moves, while a press of the B button may offer a hint, though it’s a bit of a gamble. The game also supports head‑to‑head play, letting two people alternate moves on the same handheld.

Visually, the title pushes the Lynx’s color screen with a striking 3D board that you can flip to an overhead view for that final assault. On‑screen statistics keep track of scores, elapsed times and move counts, and a review mode lets you scroll back through the game at any point.

What really sets this handheld apart is the Fidelity‑lab‑crafted engine, the only USCF‑certified Master‑rated (2325) program available on a portable device at the time, making it arguably the fastest and most powerful color chess computer you could carry in your pocket.