Draughts Ember & Slate | HTML5 Game With AI and PvP

Premium HTML5 Draughts (Checkers) game. Eight built-in themes plus a fully customizable theme editor. Three AI difficulty levels, including a Hard mode powered by depth-7 minimax with move ordering. No build step — open index.html directly.

Game Modes

vs AI

Play against the computer engine. Supports Easy, Medium, and Hard difficulty.

Two Players

Local head-to-head on a single device. Both players share the same screen and take alternating turns.

AI Difficulty

Easy

Random move selection from the legal move set. Mandatory captures are respected. Designed for new players and children.

Medium

Minimax algorithm at depth 4 with alpha-beta pruning. Evaluation uses piece counts, positional weight table, and mobility scoring. Reaction delay 500–800ms.

Hard

Minimax algorithm at depth 7 with alpha-beta pruning and root-level move ordering. The Hard evaluator applies heavier king weighting (7 vs 5), stronger positional multipliers, aggressive mobility penalties on the opponent, and capture-threat bonuses. Captures and promotion moves are sorted first at every node. No randomness. Reaction delay 200–300ms.

Themes (8 built-in + full custom editor)

1. Ember — Warm amber brass and burnt sienna. Default theme.
2. Slate — Cool steel-blue pieces on deep navy squares.
3. Forest — Earthy greens and woodland browns.
4. Arctic — Icy blues and crisp whites on dark ocean.
5. Midnight — Deep violet and lavender on near-black.
6. Crimson — Blood reds and pale rose on dark wine.
7. Gold — Rich gold and ivory on deep walnut.
8. Neon — Electric cyan and red-orange on near-black with canvas glow effects and grid-line overlays.
9. Custom — Full user-defined theme. Individually configurable light squares, dark squares, frame color, accent color, Copper piece color, and Slate piece color. Piece shading (highlight and shadow) is derived automatically. Six built-in presets: Classic, Obsidian, Ocean, Rose, Sand, Jade. Theme selection and custom colors are persisted via localStorage.