Frostfall Gambit

A 3D chess duel on a frozen slab in a snowbound forest: pick up a piece and see every legal square.

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A 3D chess duel on a frozen slab in a snowbound forest: pick up a piece and see every legal square.

Build a 3D chess duel in a snowbound forest: ivory faces obsidian on a frozen slab board, board one of a winter tournament played out among the trees. Click a piece to pick it up and the board highlights every legal square it can reach; drag to orbit the view, flip the board to the other side, or switch between seated-across, elevated, and overhead cameras, so the whole duel can be followed from any seat as the position develops. Pawn promotion offers a choice of piece, the move history stays highlighted so the last moves are easy to retrace, and the fifty-move and threefold-repetition rules are enforced, with full-screen result curtains for a win, a draw, or a loss on time, each falling over the board like a theater curtain. The match opens on a title screen announcing board one of the winter tournament, and rendering quality steps down automatically whenever needed to hold the frame rate. Single-file static page.

Ten endgame challenges

Adds ten endgame challenge stages entered from the winter-tournament title screen, so beyond a full duel the player can work through frozen-board endgames one level at a time.

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Build a 3D chess duel in a snowbound forest: ivory faces obsidian on a frozen slab board, board one of a winter tournament played out among the trees. Click a piece to pick it up and the board highlights every legal square it can reach; drag to orbit the view, flip the board to the other side, or switch between seated-across, elevated, and overhead cameras, so the whole duel can be followed from any seat as the position develops. Pawn promotion offers a choice of piece, the move history stays highlighted so the last moves are easy to retrace, and the fifty-move and threefold-repetition rules are enforced, with full-screen result curtains for a win, a draw, or a loss on time, each falling over the board like a theater curtain. The match opens on a title screen announcing board one of the winter tournament, and rendering quality steps down automatically whenever needed to hold the frame rate. Single-file static page.

Summer night board

Trades the frozen slab for a summer-night stone lit by drifting fireflies; the ivory and obsidian pieces, the legal-move highlights, and every rule stay unchanged.

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Build a 3D chess duel in a snowbound forest: ivory faces obsidian on a frozen slab board, board one of a winter tournament played out among the trees. Click a piece to pick it up and the board highlights every legal square it can reach; drag to orbit the view, flip the board to the other side, or switch between seated-across, elevated, and overhead cameras, so the whole duel can be followed from any seat as the position develops. Pawn promotion offers a choice of piece, the move history stays highlighted so the last moves are easy to retrace, and the fifty-move and threefold-repetition rules are enforced, with full-screen result curtains for a win, a draw, or a loss on time, each falling over the board like a theater curtain. The match opens on a title screen announcing board one of the winter tournament, and rendering quality steps down automatically whenever needed to hold the frame rate. Single-file static page.

Step-by-step game review

Adds a step-by-step review after the result curtain, letting the player walk the finished game back one move at a time alongside the highlighted move history.

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Build a 3D chess duel in a snowbound forest: ivory faces obsidian on a frozen slab board, board one of a winter tournament played out among the trees. Click a piece to pick it up and the board highlights every legal square it can reach; drag to orbit the view, flip the board to the other side, or switch between seated-across, elevated, and overhead cameras, so the whole duel can be followed from any seat as the position develops. Pawn promotion offers a choice of piece, the move history stays highlighted so the last moves are easy to retrace, and the fifty-move and threefold-repetition rules are enforced, with full-screen result curtains for a win, a draw, or a loss on time, each falling over the board like a theater curtain. The match opens on a title screen announcing board one of the winter tournament, and rendering quality steps down automatically whenever needed to hold the frame rate. Single-file static page.