Backgammon in the browser in real 3D: twenty-four points, fifteen checkers a side, a raised bar, tumbling dice, hitting and entering, bearing off, the doubling cube, gammons and backgammons, match play with the Crawford rule and money play with Jacoby, beavers and automatic doubles. An independent implementation of the published rules — every rule cites a source (Wikipedia's Backgammon article, the Rules of Backgammon and FAQ at Backgammon Galore, the U.S. Backgammon Federation's Backgammon Basics and its 2024 Tournament Rules, and the Rockwell-Kazaross match equity table) and none is reconstructed. Hand-written WebGL2, no libraries, no model, no credits, nothing sent anywhere. The dice come from a seeded generator and the tumble is staged to show the number already drawn — the physics is presentation, not the source of the roll.

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