Bagh Chal engine board.js/common.js/config.js by Oliver Merkel, copyright 2016,2026, MIT. Source: https://github.com/OMerkel/BaghChal/tree/2993e1c449c2698abe2cd786ac02b6f147c291ed Original responsive interface, vector pieces, bounded minimax opponent, undo, saves and repetition draw added for this adaptation. No upstream images, board art, fonts, libraries or sound are used. Standard Bagh Chal network is drawn geometrically. This adaptation follows upstream mandatory captures and one jump per turn. Three repetitions draw by local house rule.