Who Invented Closed Chess Games?

One of the most interesting aspects of the recent chess960 matches (featuring Garry Kasparov) in St. Louis, was their potential to develop some kind of rudimentary opening theory. It appears that the players enjoyed this opportunity as well. As Peter Doggers wrote: [T]he players get to spend an hour

Where did chess come from?

PalmRoyal Collectible Folding Wooden Chess Game Board Set with Magnetic Crafted Pieces, 12 X 12

Condition is New. Shipped with USPS Priority Mail.

professor puzzle Chess Game Set

I was randomly playing against chess.com's top level bot and it made this blunder. No clue how. (Game link is in comments) : r/chess

YMXWFC Chess Set Metal Bronze and Brass Chess Pieces Solid Wooden Folding Chess High Grade Professional Chess Games Chess Board : Toys & Games

M2M Day 362: If I didn't figure this, there would be no path forward. Luckily, I did., by Max Deutsch

Vintage Hausemann & Hotte Jumbo Schachspiel Chess Game Set #758 Made in Holland

15 x 15 made of Australian Marble Stone with Lapis Lazuli Semi-precious Stone pieces are filled in Resin in alternate squares, please refer photos.

StonKraft 15 X 15 Collectible Chess Game Board Made with Australian Marble, Lapiz Lazuli Without Pieces - Appropriate Wooden & Brass Chess Pieces

Why Was Chess Popular In The Middle Ages? - Kingdom Of Chess

Who invented chess?

Who Invented Closed Chess Games?

14in Natural Wooden Folding Chess Game with Staunton Pieces, 1 each - Kroger

History of Materials used for making Chess Pieces