Tap or click a piece, then a highlighted destination. Games save automatically on this device.
Android / Chrome: menu → Install appiPhone / iPad / Safari: Share → Add to Home Screen
Installed play works offline, including computer opponents.
Clock: optional controls include 3+2, 5 min, 10 min, 15+10, and 30 min. The number after + is the increment added after each move. The clocks appear at the right end of the captured-piece strips.
Resign: ends the current game after confirmation.
Computer strength: Easy and Medium use the lightweight browndrake engine. Numbered levels use fixed Skill/depth profiles in bundled Stockfish 17.1 lite. Elo labels are approximate test levels intended to be consistent and progressively stronger, not exact rating guarantees.
Engine: Stockfish loads when an Elo level is used.
For testing Stockfish strength/integration. The log records the exact position, Skill/depth profile, search command, final search info, and bestmove for each Stockfish turn.
Stockfish license
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browndrake chess v3.15 test ladder · © 2026 browndrake games