Infinite board. Standard pieces. Real match ahead.

What stays the same

The pieces move by ordinary chess geometry. Kings, queens, rooks, bishops, knights, and pawns all behave as you already expect.

• White starts on ranks 1-2, black on ranks 7-8.
• Turns alternate normally.
• Captures, checks, and tactical threats still matter exactly because the pieces are standard.

What changes

The board has no edges. You can pan forever in every direction, which means geometry and long-distance piece relationships become part of the game in a way ordinary chess never allows.

• No corners or fixed center define strategy for you.
• Long-range pieces can keep travelling instead of hitting a border.
• The playable front follows the action with panning rather than pretending infinity fits in one frame.

What this prototype does now

• Two-player hotseat play in the browser.
• Click-to-select and click-to-move on an unbounded board.
• Drag to pan, WASD/arrows to move the viewport, plus zoom and undo.
• Move log, captured pieces, last-move highlight, and king-attacked visual flag.
• Castling, en passant, and self-check filtering through the shared move API.
• Pawns auto-promote on the classical far rank used by this prototype: white at `y = 7`, black at `y = 0`.

What is still provisional

• Sliding pieces are capped at 50 squares in this hotseat prototype so browser play stays practical.
• Check and checkmate are enforced by the prototype, but the exact infinite-board tournament edge cases still need a rules lock.
• Promotion is implemented, but the UI and notation contract still need review before public championship use.
• The exact championship ruleset still needs explicit confirmation against Naviary's current public rules.